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An illustration of Supersaurus shows what a giant it was, reaching at least 128 feet in length.

Supersaurus might be the longest dinosaur that ever lived

By Laura Geggel

If two Supersauruses bopped noses, they'd be longer than an American football field.

An artist's depiction of the IC 10 X-1 system, a black hole lurks in the upper left corner.

Black holes may be growing as the universe expands

By Ben Turner

The hypothesis could help to explain the weird discrepancies spotted in space-time ripples from enormous black hole collisions.

The interloper 'Oumuamua continues to puzzle astronomers and astrophysicists.

Interstellar visitor 'Oumuamua wasn't a nitrogen iceberg, Harvard astrophysicists say

By Kimberly Hickok

The interstellar visitor 'Oumuamua might not be a nitrogen iceberg after all. But what is it?

A lingcod's mouth photographed from a fishing boat. The fish was later released.

This fish has 555 teeth … and it loses 20 every day

By Cameron Duke

The Pacific lingcod has a mouth full of teeth and sheds up to 20 per day.

A photo of a taxidermy polar bear with its mouth open.

Polar bear parts are being smuggled around the world

By Patrick Pester

Hundreds of bear parts and their derivatives, such as bile, have been smuggled into Australia and New Zealand since 2007, including polar bears.

Researchers at Rochester’s Laboratory for Laser Energetics used the same set-up at the recent study to create superionic ice, shown here in this artistic rendering. In that instance, the ice was not stable.

Ultrahot 'superionic' ice is a new state of matter

By Ben Turner

To create the ice, the scientists had to squeeze a water droplet to 3.5 million times Earth's atmospheric pressure and heat it hotter than the sun.

An artist's impression of the inside of a wormhole.

Wormholes may be viable shortcuts through space-time after all, new study suggests

By Paul Sutter

Wormholes may be stable after all, a new theory suggests, contradicting previous predictions that these hypothetical shortcuts through space-time would instantly collapse.

Rhesus macaques (Macaca mulatta) and other types of monkeys retain the tails that apes and humans lack.

Why don't people have tails?

By Mindy Weisberger

Scientists recently found that a so-called jumping gene may have jumped ship millions of years ago, and taken our tails with it.

two bald eagles lying on the ground, their wings and bodies overlapping

Tangled bald eagles crash land on Minnesota street

By Nicoletta Lanese

The bald eagles may have tangled while fighting over territory or executing a courtship ritual.

An artist's impression of a DNA molecule.

A version of this gene doubles the risk of dying from COVID-19

By Stephanie Pappas

A version of a gene that doubles the risk of death from COVID-19 in people under 60 is carried by more than half of people with South Asian ancestry.

The number of satellites orbiting the Earth is increasing exponentially.

How many satellites orbit Earth?

By Harry Baker

The number of satellites orbiting Earth is skyrocketing, and this may be causing more problems than solutions in the long term.

Comet 67P, the famous target of the Rosetta mission, has made its closest approach to Earth in November 2021.

Rosetta's 'rubber ducky' comet makes closest approach to Earth, will disappear for 200 years

By Tereza Pultarova

Comet 67P, which famously hosted the first-ever cometary lander in 2014, made its closest approach to Earth on Friday (Nov. 12).

Artist's impression of a person in space. Humans in space without spacesuits would not last long.

What would happen to the human body in the vacuum of space?

By Jacklin Kwan

Here's what would happen to an astronaut's body if they didn't have a spacesuit protecting them in outer space.

The 'doughnut UFO' spotted over Switzerland appeared the same night as SpaceX's Endeavor capsule reentry.

'Doughnut UFO' over Switzerland defies explanation

By Brandon Specktor

A photographer in Zurich, Switzerland, spotted the glowing object while four SpaceX astronauts returned to Earth thousands of miles away.

The lowest part of Earth's atmosphere has been rising by 164 feet (50 meters) per decade since 1980.

Earth's lower atmosphere is expanding due to climate change

By Ben Turner

The rate of atmospheric expansion has increased since the first measurements in the 1980s.

A vaccine card showing two doses of Pfizer and a booster.

California and Colorado start COVID-19 booster shots for all adults

By Yasemin Saplakoglu

California and Colorado expanded booster shot eligibility to all adults who received their second dose of Moderna's or Pfizer's COVID-19 vaccine at least six months ago.

Black Friday rowing machine deals: Product image of Hydrow

Black Friday rowing machine deals: All the latest discounts

By Patricia Carswell

DEALS With these Black Friday rowing machines deals you'll have a way to workout at home for less.

DEALS
Black Friday Bowflex deals: image of man running on Bowflex treadmill

Black Friday Bowflex deals: Get a great price on home workout equipment

By Maddy Biddulph

DEALS These are the best Bowflex deals to help you reach your fitness goals at home.

DEALS
Black Friday Oral B electric toothbrush deals: Image of Oral B toothbrush

Black Friday Oral B electric toothbrush deals: What's on sale and what's in stock

By Sarah Finley

DEAL Secure these early Black Friday Oral B electric toothbrush deals now.

DEAL
The 2021 Antarctic ozone hole reached its maximum area on Oct. 7 and ranks as the 13th-largest such feature since 1979.

See how the huge ozone hole over Antarctica has grown in 2021 in this NASA video

By Elizabeth Howell

A new NASA video highlights the giant ozone hole that opened over the Antarctic this year.