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Free-Floating Planet-Mass Objects are Common in Galaxies 2019-12-13 16:45:23Using a technique called quasar microlensing, a team of astronomers at the University of Oklahoma has detected populations of free-floating planet-mas

NASA’s MAVEN Orbiter Maps Martian Upper Atmospheric Winds 2019-12-13 14:53:09Using NASA’s Mars Atmosphere and Volatile Evolution (MAVEN) spacecraft, a team of planetary researchers have measured the speed and direction of

New Eocene-Period Whale Unearthed in Egypt 2019-12-13 12:53:53Paleontologists have announced the discovery of a new genus and species of extinct protocetid whale, based on the fossilized remains found in the West

Gemini North Telescope Captures Stunning Galaxy Collision 2019-12-13 11:04:42Astronomers working at the NSF-supported Gemini Observatory have captured a new photo of interacting spiral galaxies NGC 5394 and NGC 5395, collective

‘Proton Aurora’ is Most Common Type of Aurora 2019-12-13 10:01:30Proton aurora, a type of Martian aurora first identified in 2016, forms when protons from the solar wind interact with hydrogen in the extended portio

43,900-Year-Old Cave Painting Portrays Part-Human, Part-Animal Beings 2019-12-13 08:57:08Archaeologists excavating the limestone cave of Leang Bulu’ Sipong 4 on the Indonesian island of Sulawesi have discovered a painting that is app

Hubble Team Releases New Photos of Interstellar Comet 2019-12-13 07:29:20Astronomers using the NASA/ESA Hubble Space Telescope have captured two new images of 2I/Borisov, the first known interstellar comet to travel through

Annihilating Dark Matter May Lurk in Milky Way’s 2019-12-12 13:55:13Gamma rays — the most energetic waves in the electromagnetic spectrum — are typically produced by the hottest, most extreme objects in the

Chernobyl-Level Radiation Exposure Increases Bumblebees’ Appetite for Nectar 2019-12-12 10:41:51A team of researchers from the University of Stirling and the Centre for Ecology and Hydrology in the UK has demonstrated that simulated Chernobyl-lev

Merging Pair of Dusty Star-Forming Galaxies Spotted 13 2019-12-12 09:07:50Using the Atacama Large Millimeter/submillimeter Array (ALMA), an international team of astronomers has spotted an unlensed, dusty star-forming galaxy

New Map Shows Near-Surface Water Ice on Mars 2019-12-12 07:54:35Using data from NASA’s Mars Reconnaissance Orbiter and Mars Odyssey orbiter, a team of planetary researchers have crated a map of the water ice

Water Vapor is Common in Atmospheres of Extrasolar 2019-12-11 15:20:14In a study published recently in the Astrophysical Journal Letters, a team of astronomers analyzed spectroscopic atmospheric data from 19 exoplanets,

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Giant New Cyclone Discovered at Jupiter's South Pole 2019-12-12 17:30:00NASA's Juno spacecraft picked out a hexagon of storms hidden beneath the top layer of Jupiter's clouds.

When Dieting Should We Be Fasting Or Grazing? 2019-12-12 16:30:00When and how to eat is the cornerstone of many diets. But the advice often conflicts.

Tour 10 of the Closest Black Holes to 2019-12-12 16:00:00Black holes should be common in our Milky Way galaxy, but their dark nature means only dozens have been discovered to date. Here are a few nearby blac

The 'Impossible' Molecules That Only Appear In Space 2019-12-12 15:20:00Compounds with noble gases don’t form naturally on Earth. But in the interstellar medium, they are helping scientists probe the history of the u

With Climate Change, Evergreen Trees May Begin to 2019-12-12 14:20:00Higher levels of carbon in the atmosphere might give evergreen trees an advantage.

Water From A Mine in South Africa Might 2019-12-12 13:45:00The water contains bacteria-like shapes that researchers plan to test for DNA.

Abra-Cadaver! Lab-Made Blood Vessels Come to Life 2019-12-12 11:00:00#48 in our top science stories of 2019.

Trip Therapy: Scientists Pin Down How MDMA Works 2019-12-11 17:45:00New research into MDMA, the main ingredient in ecstasy, could help researchers develop better drugs for therapeutic treatment.

44,000-Year-Old Cave Art Shows A Hunt Filled With 2019-12-11 16:40:00Found in Indonesia, the ancient paintings show beings that archaeologists interpret as half-human, half-animal hunters.

The Best Pictures of Interstellar Comet Borisov as 2019-12-11 16:00:00Interstellar visitor 2I/Borisov just made its closest approach to the sun. Here are some shots astronomers took of its journey.

Researchers Find Extinct Mega Carnivore Remains in a 2019-12-11 16:00:00#49 in our top science stories of 2019.

Watch a Blue Origin Rocket Stick its Sixth 2019-12-11 14:45:00Blue Origin, the rocket company owned by Amazon founder Jeff Bezos, just completed its sixth launch and landing of a single New Shepard rocket.

NYT > Science

A Research Nonprofit Shutters TB Vaccine Effort and 2019-12-13 20:27:43A financially troubled Seattle research institute cut back programs, leaving researchers to find new homes for work on infectious diseases like tuberc

To Prevent Deadly Infections, F.D.A. Approves the First 2019-12-13 18:13:09Reusable duodenoscopes infected patients in a series of notorious outbreaks. Now there’s a disposable model to be used just once.

Nature’s Best Poetry of 2019: Clouds 2019-12-13 18:04:38Every day, members of the Cloud Appreciation Society post photos of the sky from around the world. This is why they stop to look up.

How to Watch the Geminids Meteor Shower 2019 2019-12-13 15:57:32Meteor showers can light up night skies from dusk to dawn, and if you’re lucky you might be able to catch a glimpse.

Frail Older Patients Struggle After Even Minor Operations 2019-12-13 14:42:59These patients are not aware of the true risks, and surgeons aren’t telling them, new research suggests.

New Zealand Seeks Human Skin to Treat Volcano 2019-12-13 10:57:40The country’s need highlights a little-known type of organ donation.

Even Hermit Crabs Have Wealth Inequality 2019-12-13 09:00:19The distribution of shells in one population of hermit crabs matched how wealth is shared in some human societies.

Federal Watchdog Questions Billions of Dollars Paid to 2019-12-13 00:51:02A new report from the inspector general’s office criticized insurers for overstating patients’ illnesses without adequate documentation to

NASA’s Osiris-Rex Selects Target Asteroid Landing Site 2019-12-12 21:45:17The spacecraft spent a year mapping Bennu’s rugged terrain, and next year it will touch down on the surface to collect a sample.

The Case of a Man With Two Sets 2019-12-12 17:13:54A crime lab studied a patient’s response to a bone marrow transplant. Readers requested more information about the perplexing findings.

Mythical Beings May Be Earliest Imaginative Cave Art 2019-12-12 11:23:24The paintings on an Indonesian island are at least 43,900 years old and depict humanoid figures with animal-like features in a hunting scene.

Head Cones in Ancient Egyptian Graves Cap Archaeological 2019-12-11 16:36:40It took recent excavations to finally prove that the headgear depicted in hieroglyphic scenes was real and not iconographic.

Latest Science News --

Nurses sleep less before a scheduled shift, hindering 2019-12-13 11:54:50Nurses sleep nearly an hour and a half less before work days compared to days off, which hurts patient care and safety, finds a new study.

People willing to risk near-certain death for an 2019-12-13 11:54:44People willing to risk near-certain death for an HIV cure; protecting individuals and families in genetic and psychiatric research, considerations for

Breakthrough in Zika virus vaccine 2019-12-13 11:54:42Researchers have made significant advances in developing a novel vaccine against Zika virus, which could potentially lead to global elimination of the

Perinatal exposure to flame retardant alters epigenome, predisposing 2019-12-13 11:54:38A new study showed that environmentally relevant exposure to polybrominated diphenyl ether (PBDE), a brominated flame retardant, through the umbilical

New study enhances knowledge about widespread diseases 2019-12-13 11:54:24When proteins in the brain form deposits consisting of insoluble aggregates, diseases such as Alzheimer's or Parkinson's can occur. Now a research t

Synthetic nanopores made from DNA 2019-12-13 11:54:22A scientific collaboration has resulted in the construction of a synthetic DNA nanopore capable of selectively translocating protein-size macromolecul

Moongoose females compete over reproduction 2019-12-13 11:54:20A new study on wild banded mongooses reveals that females may use spontaneous abortion to cope with reproductive competition, and to save their energy

Study probing visual memory, amblyopia unveils many-layered mystery 2019-12-13 11:54:18Scientists pinpionted the role of a receptor in the plasticity underlying the degradation of vision in the common childhood condition amblyopia, but e

Bone bandage soaks up pro-healing biochemical to accelerate 2019-12-13 11:54:16Researchers have engineered a patch or bandage that captures a pro-healing molecule called adenosine that briefly surges at the site of a bone break o

Researchers reconstruct spoken words as processed in nonhuman 2019-12-13 11:54:12Using a brain-computer interface, a team of researchers has reconstructed English words from the brain activity of rhesus macaques that listened as th

Finding a killer electron hot spot in Earth's 2019-12-13 11:54:10JAXA and NASA satellite observations show where killer electrons are generated in the Van Allen radiation belts surrounding Earth.

Human teeth used as jewellery in Turkey 8,500 2019-12-13 11:54:08At a prehistoric archaeological site in Turkey, researchers have discovered two 8,500-year-old human teeth, which had been used as pendants in a neckl

Scientific American Content:

Police Killings of Unarmed Black Americans May Affect 2019-12-04 16:00:00Maternal stress arising from perceived racial discrimination could cause premature births and lower birth weights -- Read more on ScientificAmerican.c

Missing Link Found for How Modern Humans Evolved 2019-12-04 15:15:00A genetic condition helps uncover how modern human mugs came to differ from those of Neandertals -- Read more on ScientificAmerican.com

NASA's Sun-Kissing Parker Solar Probe Lifts the Veil 2019-12-04 14:15:00The daring mission’s first results reveal surprises about the solar wind -- Read more on ScientificAmerican.com

CO2 Emissions Will Break Another Record in 2019 2019-12-04 12:30:00The recent increase in emissions from fossil fuel burning did slow down, but huge cuts are needed to avoid dangerous warming -- Read more on Scientifi

The Missing Link in Fighting Antibiotic Resistance 2019-12-04 12:00:00Rapid diagnostics can flag outbreaks of “superbugs” before they spread -- Read more on ScientificAmerican.com

Trump Administration Program Will Provide HIV Prevention Drug 2019-12-04 11:45:00The “Ready, Set, PrEP” program will provide donated drugs that could protect up to 200,000 people a year for 11 years -- Read more on Scie

Is ASMR Real or Just a Pseudoscience? 2019-12-04 10:00:00Autonomous sensory meridian response (ASMR) is all the rage lately. Is it real? Is there something special about people who have it? -- Read more on S

It Takes a "Surgeon" to Cut a Building's 2019-12-04 07:00:00Large structures are unique and complex, much like human bodies, and making them healthier requires true expertise -- Read more on ScientificAmerican.

Black Hole Factories May Hide at Cores of 2019-12-04 06:45:00Gravitational-wave astronomers are probing the origins of abnormally massive black holes—and with them, the inner workings of their colossal gal

Internet Cables Could Also Measure Quakes 2019-12-03 19:15:00The fiber-optic cables that connect the global Internet could potentially be used as seismic sensors. Christopher Intagliata reports.  -- Read mo

How an Idea Becomes a Published Scientific Paper 2019-12-03 16:00:00Everyday Einstein interviews exoplanetary scientist Moiya McTier to learn about the process and why we can trust scientific papers -- Read more on Sci

Long Live the Multiverse! 2019-12-03 14:00:00The idea that our universe is just part of a much vaster cosmos has a long history—and it’s still very much with us -- Read more on Scient

Latest News from Science

Rude paper reviews are pervasive and sometimes harmful, 2019-12-12 11:50:00Researchers of color particularly vulnerable to “unprofessional” comments

Chinese trade in hides has led to global 2019-12-12 11:35:00Surging demand for ejiao, a traditional Chinese medicine, sends populations crashing

Sweet potato can warn neighbors of insect attacks 2019-12-12 04:50:00Breeding potatoes that produce chemical compound could provide an all-natural pest defense

Hunting for new epilepsy drugs, and capturing lightning 2019-12-12 02:45:00On this week’s show: Tracing the roots of epilepsy, and watching lightning, terrestrial gamma ray bursts, and elves from the iInternational sSpa

NASA picks challenging landing site for its asteroid-sampling 2019-12-12 02:00:00“Nightingale” site, on Bennu’s northern flank, could preserve organics

As epilepsy drugs fail nearly one-third of patients, 2019-12-12 01:20:00Leaps in gene sequencing and better animal models are changing how doctors understand, study, and sometimes treat epilepsy

Microsatellites will capture GPS reflections to sharpen weather 2019-12-11 05:50:00Startup launches first in a planned space flotilla to probe soil moisture and hurricane winds

Modern fishing methods are driving small whales and 2019-12-11 04:25:00Report paints dire picture of coastal cetacean populations

AI-driven robots are making new materials, improving solar 2019-12-11 04:00:00Decision-making algorithms transform how automated systems evaluate and synthesize novel compounds

Astronomy funder finds that gender diversity takes more 2019-12-11 01:10:00Heising-Simons Foundation takes steps to reduce gender bias in selecting postdoc fellows

Even dinosaurs had lice, fossils entombed in amber 2019-12-10 11:00:00100-million-year-old insects that fed on feathers are the oldest licelike fossils known

These mysterious Egyptian head cones actually existed, grave 2019-12-10 10:10:00But mystery lingers about what they were for

Science | Smithsonian

Lice-Filled Dinosaur Feathers Found Trapped in 100-Million-Year-Old Amber 2019-12-10 11:00:00Prehistoric insects that resemble modern lice infested animals as early as the mid-Cretaceous, living and evolving along with dinosaurs and early bird

Scientists Pumped Ovarian Tissue Full of Sugar and 2019-12-10 09:00:00Though only tried in cat tissues so far, the technique could someday aid fertility preservation, wildlife conservation and more

The True History of the Aeronauts Who Transformed 2019-12-09 13:37:21For early balloonists like James Glaisher, the sky was uncharted—and dangerous—territory

Treehoppers’ Bizarre, Wondrous Helmets Use Wing Genes to 2019-12-09 11:00:00The elaborate structures, which are not actually wings, can resemble thorns, leaves, ants and more

How Studying Bioluminescent Creatures Is Transforming Medical Science 2019-12-05 12:41:47The natural light of insects and sea creatures can help doctors illuminate H.I.V. and even kill cancer cells

Not All Birds Fly South for the Winter 2019-12-05 09:35:57Researchers in Virginia studied how mowing, burning or animal grazing helped or hindered birds that stayed home for the winter

How Dan the Zebra Stopped an Ill-Fated Government 2019-12-04 09:00:00At the centennial of the death of this captive animal, an archaeozoologist visited collections at the Smithsonian to examine human-animal relationship

Harmful Bacteria Masquerade as Red Blood Cells to 2019-12-03 11:00:00Studying the stealthy strategy could help researchers develop new treatments for group A strep infections, which kill more than 500,000 people each ye

Why the World Needs Bloodsucking Creatures 2019-12-02 13:47:50The ecological benefits of animals like leeches, ticks and vampire bats are the focus of a new exhibition at the Royal Ontario Museum

Flesh-Ripping Dinosaurs Replaced Their Teeth Multiple Times a 2019-11-27 11:40:52A high rate of tooth turnover gave these prehistoric carnivores an edge

The Best Books of 2019 2019-11-27 10:47:40In our efforts to increase and diffuse knowledge, we highly recommend these 55 titles released this year

Ten Smithsonian Artifacts You Can 3-D Print 2019-11-27 10:02:14Gift-giving gets real with this list, which includes Neil Armstrong’s spacesuit, an Abraham Lincoln life mask and a coral skeleton

Live Science

Scientists Found the Deepest Land on Earth Hiding 2019-12-13 16:31:50A new mapping effort revealed critical new details of Antarctica's hidden land.

The Most Amazing Science Images of the Week 2019-12-13 14:59:42Here's a look at the stunning science photos released this week.

Physicists Use Bubbling Quantum Vacuum to Hopscotch Heat 2019-12-13 11:54:01Heat isn't supposed to move like this.

Dazzling 'Temple of Colored Marbles' Honoring Roman God 2019-12-13 08:29:01Archaeologists have discovered a 1,600-year-old temple called the "Mithraeum of Colored Marbles," where Romans would have worshipped the god Mithras

The Science Behind Your (Irrational) Fear of Friday 2019-12-13 07:44:51Friday the 13th is what you make it, and it's OK if you think it's unlucky.

Thousands of 10-Inch 'Penis Fish' Washed Up on 2019-12-13 07:23:20A "penis fish" is neither a penis nor a fish. (Discuss.)

Lightning Bolts Create Glowing Auroral 'Elves' and Brilliant 2019-12-13 07:00:41Dark fluffy thunderclouds don't just fuel dramatic storms, they also produce some of the most energetic flashes of light on the planet.

Lightning Strikes Almost Killed the Apollo 12 Mission 2019-12-13 07:00:02The launch sparked two lightning strikes that disrupted critical rocket systems.

What Was the Black Death? 2019-12-12 12:32:47The Black Death killed over half the population of Europe during the Middle Ages.

A Dark River Nearly 1,000 Miles Long May 2019-12-12 12:19:48It lies far below Greenland's frozen surface.

Our Large, Adult Galaxy Is As Massive As 2019-12-12 07:59:30We live in a very big house, but we can't see most of it.

'Lost' Iron Meteorites May Lurk Beneath Antarctic Ice. 2019-12-12 07:52:04Scientists are scouring the remote Antarctic ice cap for rare meteorites chock-full of iron and holding secrets to the history of our solar system goi

Astronomy News – Sky

Hubble Images Comet Borisov at Perihelion 2019-12-13 10:40:32The Hubble Space Telescope imaged the interstellar comet 2I/Borisov when it came closest to the Sun before heading back out of the solar system. The p

New Cyclone Joins Jupiter’s South Pole Club 2019-12-13 09:59:07Stunning new images from NASA’s Juno mission reveal that a new cyclone has budged its way into the grouping at Jupiter’s south pole. The p

NASA Announces Site of Sample Selection for Osiris-REX 2019-12-12 16:29:17NASA has picked the "Nightingale" site, located within a small crater on the asteroid Bennu, for its Osiris-REX mission to sample next year. The pos

Geminids and the Moon Duke it Out 2019-12-11 17:35:47Don't let light from the gibbous Moon discourage you from enjoying the annual Geminid meteor show on the peak night, December 13-14. The post Geminid

Meade Instruments Files for Bankruptcy Protection 2019-12-09 13:12:19Meade Telescopes files for Chapter 11 Bankruptcy protection after loosing an antitrust lawsuit brought by Orion Telescopes & Binoculars. The post

How Saturn’s Moon Got Its Stripes 2019-12-09 11:00:34Astronomers have struggled to understand the origin of the parallel fractures on Saturn’s icy moon Enceladus, known as “tiger stripes,&rdq

How a White Dwarf Is Vaporizing Its Giant 2019-12-05 15:17:30Astronomers have long suspected that white dwarfs eat their planetary companions. Now, indirect observations show the process in action. The post How

Asteroid Bennu’s Activity Still a Mystery 2019-12-05 14:01:46The near-Earth asteroid constantly shoots out rocks, leaving planetary scientists perplexed. The post Asteroid Bennu’s Activity Still a Mystery

First Science Returns from NASA’s Parker Solar Probe 2019-12-05 10:50:03In the first public release of data from NASA’s flagship heliophysics mission, scientists on the Parker Solar Probe team reveal surprises and my

The Starlink Situation 2019-12-03 13:23:30Shots of the Starlink satellite train crossing the heavens are dramatic — even shocking — but they’re also a bit misleading. The rea

The Appearance of a Black Hole’s Shadow 2019-12-03 09:00:56In April of this year, the Event Horizon Telescope captured the first detailed images of the shadow of a black hole. In a new study, a team of sc

New Method May Expedite Search for Exoplanets with 2019-12-02 11:00:37A team of astronomers propose screening exoplanets by their temperatures to determine whether they host an atmosphere — and are worth following

Space.com

It's No Lark: NASA Asteroid Mission Picks 'Nightingale' 2019-12-12 18:11:03We now know where NASA's first asteroid sample-return mission aims to snag its otherworldly stuff.

Boeing's Starliner Astronaut Taxi Is 'Go' for Launch 2019-12-12 17:52:29Boeing's CST-100 Starliner spacecraft is ready to deliver holiday presents on its inaugural trip to the International Space Station.

How to See Friday Night's Geminid Meteor Shower, 2019-12-12 17:51:19So far, 2019 has been a disaster if you are an enthusiastic watcher of "shooting stars."

Rocket Lab Opens US Launch Site for Small 2019-12-12 15:52:05Rocket Lab officially opened its new U.S. launch site for business today (Dec. 12) and the U.S. Air Force will be the company's first customer to fly

Watch Live Friday: Hubble Experts Talk Interstellar Comet 2019-12-12 15:02:32Hubble scientists will discuss the interstellar comet Borisov in a series of interviews that will stream live on NASA TV from 6 a.m. to 12 p.m. EST (1

Life on Mars? Europe Commits to Groundbreaking Mission 2019-12-12 15:00:00It will be one of the most daunting, complicated and, potentially, scientifically rewarding missions ever undertaken to the red planet.

1st Global Map of Martian Winds Reveals 'Ripple 2019-12-12 14:01:05A new global map of winds on Mars shows "ripple effects" from the extreme terrain below.

'Monster Black Hole' Discovery Found to be Incorrect 2019-12-12 12:41:27Apparently, that "monster black hole" that researchers found isn't so monstrous after all.

Indian Rocket Marks Historic 50th Launch with Spy 2019-12-12 12:33:33India's workhorse rocket celebrated its 50th flight with a successful launch of 10 satellites, including a spy vehicle.

Star Wars' Bounty Hunters Assemble for Marvel Ongoing 2019-12-12 12:00:40With Boba Fett, Bossk, and another familiar face give an eye-opening look at their 'complicated' profession.

Blue Origin Sends Kids' Postcards to Space on 2019-12-12 10:28:42A commercial rocket's brief trip to space and back has given new meaning to the popular postcard slogan, "Wish you were here!"

How A.I. Could Help Find Alien Planets and 2019-12-12 10:00:04Using artificial intelligence could aid in the search for life and detection of nearby asteroids.

Futurism

Watch YouTubers Build a Functional Half-Scale Cybertruck, Because 2019-12-13 16:33:16 Cybertruck Mini Tinkerers behind the YouTube account “The Hacksmith” are building a half-scale model of Tesla’s recently announced

Stare Into the Brutal Maw of This Barbarous 2019-12-13 16:22:31 For the first time, NASA has managed to map the entire surface of a neutron star, the cosmic carcasses of massive stars after they detonate in massiv

These Adorable 3D-Printed Houses Could Solve Homelessness 2019-12-13 15:54:55 Ground Breaking In May, housing nonprofit New Story shared a rendering depicting its plans to 3D-print an entire neighborhood. It’s now bringin

Scientists Spot One of the Most Distant Galaxies 2019-12-13 15:30:02 Scientists just spotted a galaxy for the first time, and at 13 billion lightyears away, it’s one of the most distant galaxies spotted to date.

Our Galaxy Might Have — Two! — Black 2019-12-13 15:00:41 Double Down We already know that our Milky Way galaxy is home to Sagittarius A*, a black hole with a mass about 4 million times that of our Sun.

Report: Facial Recognition Should Be Banned From Everyday 2019-12-13 13:42:43 Hold Off The artificial intelligence group AI Now released its annual report on the state of the field and, more importantly, how the technology is b

Russia Is Working on Its Own Plan to 2019-12-13 13:27:32 Russian space agency Roscosmos is creating a center devoted to monitoring meteors, comets, and asteroids to ensure they don’t collide with Eart

A Startup Wants to Turn Your Car’s Windshield 2019-12-13 13:00:45 Big Screen Today, many vehicles come equipped with a heads-up display (HUD) that projects useful information, such as a car’s speed or driving

35 Cows Live on a Floating Dairy Farm 2019-12-13 12:27:04 Off the coast of Rotterdam, Netherlands, a bizarre, floating farm is providing locals with a fresh supply of milk. The farmboat, created by the aptly

Tesla: Cybertrucks Could Weigh Up To 10,000 Pounds 2019-12-13 11:41:09 In a filing with the California Air Resources Board (CARB), Tesla commented that its newly announced Cybertruck is expected to have a towing capacity

A Researcher Grew 97 Kinds of Broccoli and 2019-12-13 11:24:16 A Cornell plant scientist, absolutely mad with power, grew 97 different breeds of broccoli and sequenced all of their genomes. The ultimate verdict:

Paradox-Free Time Travel Possible With Many Parallel Universes 2019-12-13 11:03:29 If you were to travel back in time to kill your grandparents — let’s ignore the ‘why’ for the sake of argument here — h

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