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A sign indicating a COVID-19 testing center.

1st case of omicron variant in US confirmed in California

By Yasemin Saplakoglu

U.S. officials confirmed the first U.S. case of omicron in California.

This model of Laetoli Site A shows five hominin footprints (a), along with the corresponding contour map (b) of the site in Tanzania.

Unknown human ancestor may have walked a bit like a bear on its hind legs

By Charles Q. Choi

Ancient footprints reveal a mysterious relative of humans may have lived at the same time and in the same area as the famous human ancestor "Lucy" in Tanzania.

The newly described ankylosaur Stegouros elengassen displays its weaponized tail.

'Very weird' ankylosaur's tail looked like an Aztec war club

By Laura Geggel

Paleontologists in Chile have found the remains of an ankylosaur that represents a new dinosaur lineage.

A close-up of three SpaceX Raptor engines clustered together for the company's Starship SN8 prototype.

Starship engine 'crisis' poses possible bankruptcy risk for SpaceX, Elon Musk says: report

By Mike Wall

Elon Musk thinks that problems with SpaceX's Raptor engine production pose potentially dire consequences for the company, according to media reports.

An illustration of the James Webb Space Telescope

NASA's James Webb Space Telescope on track for Dec. 22 launch

By Elizabeth Howell

The generational observatory is nearly ready for space after years of delays.

Close-up view of the two bright galactic nuclei, each housing a supermassive black hole, in NGC 7727, a galaxy located 89 million light-years away from Earth in the constellation Aquarius.

This pair of merging black holes is the closest to Earth we've ever found

By Tereza Pultarova

A pair of supermassive black holes that will soon become one has been discovered hiding in a nearby galaxy.

Oral B electric toothbrush deals

Oral B electric toothbrush deals: Discounted toothbrushes in stock and available

By Sarah Finley

DEAL Top Oral B electric toothbrush deals for you to improve your oral care routine without breaking the bank.

DEAL
Check out these Cyber Monday running headphones deals. Shown here, a woman running while wearing earbuds and a smartphone on her arm.

Running headphones deals: Save on Bose, Samsung and more

By Molly Cleary

DEAL Beat boredom while you work out with these running headphones deals.

DEAL
Fitbit deals: Product shot of Fitbit Versa 3 watch

Fitbit deals: Grab a bargain on the Fitbit Versa 3, Sense & more

By Sarah Finley

DEAL Grab one of these Fitbit deals and improve your workouts forever.

DEAL
Two Leafcutter ants transfer food, Guadeloupe National Park, Guadeloupe.

Ants vomit into each other's mouths to form social bonds

By Cameron Duke

Ants are highly social animals that have social networks, and they exchange info through vomit.

Here's a look at the best binoculars deals.

Binoculars deals: Magnificent savings on Celestron, Nikon, Bushnell and more

By Jeanna Bryner

These amazing binoculars deals will have you stargazing and sightseeing for less.

Cheap adjustable dumbbells: Adjustable dumbbell on the floor with a man working out in the background

Cheap adjustable dumbbells on sale: The best adjustable dumbbell deals

By Ali Horsfall

Deals Cheap adjustable dumbbells deals to help take your home gym to the next level.

Deals
Now extinct, the Haast's eagle was the largest eagle of all time.

Biggest eagle to ever live plunged headfirst into dead prey to eat the organs

By Mindy Weisberger

Haast's eagle may have hunted large prey like an eagle, but its eating habits — targeting the internal organs — were more like those of a vulture.

Rowing machines on sale: Young woman exercising in gym with rowing machine

Rowing machines on sale: Save on NordicTrack, Hydrow, ProForm and more

By Patricia Carswell, Timothy Williamson

DEALS Get a full-body workout for less with these rowing machines on sale.

DEALS
Treadmill deals can save you some cash. Here, a woman jogs on a home treadmill.

Treadmill deals: Save on ProForm and NordicTrack treadmills

By Maddy Biddulph

DEALS Great treadmill deals in stock and available so you can upgrade your home gym for less.

DEALS
THE “TRISTAN OTTO” TYRANNOSAURUS REX SKULL THAT WAS EXAMINED BY RESEARCHERS

Famous T. rex had a bone infection, new medical scans reveal

By Nicoletta Lanese

Scientists used a special technique to examine the fossil without damaging it.

Cyber Monday deal on this Bowflex SelectTech 552 Adjustable Dumbbell.

Save $100 on Bowflex adjustable dumbbells for Cyber Monday

By Jeanna Bryner

Deals Get 25% off this versatile set of Bowflex adjustable dumbbells, which is like getting 15 pairs of dumbbells.

Deals
Cyber Monday deal on this Bowflex SelectTech 552 Adjustable Dumbbell.

Save $100 on Bowflex adjustable dumbbells for Cyber Monday

By Jeanna Bryner

Deals Get 25% off this versatile set of Bowflex adjustable dumbbells, which is like getting 15 pairs of dumbbells.

Deals
A coronavirus particle binds to a human cell.

Coronavirus variants: Here's how the SARS-CoV-2 mutants stack up

By Live Science Staff

Here's a look at the science behind SARS-CoV-2 variants and which coronavirus mutants are the most concerning in different areas.

The simulation showed 8 stars veering past a hungry black hole. This lucky one made it past alive.

Watch a black hole rip 4 stars to shreds in epic new NASA simulation

By Brandon Specktor

NASA astronomers flung 8 stars into a black hole's path in a new simulation that tests the limits of stellar survival in the face of space's most destructive objects