TESS watched a black hole tear apart a star

TESS watched a black hole tear apart a star from start to finish, a cataclysmic phenomenon called a tidal disruption event.

Seven half-lit balls in a row, against a black background.

TESS spacecraft is finding hundreds of exoplanets

… and it’s poised to find thousands more. But will we find another Earth?

Bug dark blue circle with a swath of white cutting through it.

TESS planet-hunter shows you the southern sky

Mosaic of the southern sky constructed from 208 images by NASA’s TESS spacecraft, taken during the mission’s first year of science operations.

Watch what happens when scientists excavate a giant anthill

In this video clip, scientists pump concrete into a giant abandoned ant colony, then excavate the colony to reveal the intricate complexity of its inner structure. A must-see.

Deep-sea nightmares and other ocean spookiness

Eerie denizens of the ocean depths star in this video from the Monterey Bay Aquarium Research Institute.

White bird on a branch.

Listen to the world’s loudest bird

Biologists report that the white bellbird, which lives in the mountains of the Amazon, has shattered the record for the world’s loudest bird.

NOAA’s US winter weather outlook

NOAA has issued its winter 2019-2020 outlook for temperature, precipitation and drought for the US, including Alaska and Hawaii.

Bumpy, multi-colored ball.

Tycho supernova

New image of the Tycho supernova remnant from the Chandra X-ray Observatory.

Green and orange ball, with an irregular blue center.

2019 ozone hole smallest since its discovery

Thanks to abnormal weather patterns in the upper atmosphere over Antarctica, this year’s ozone hole is the smallest since the ozone hole was 1st observed in 1982.

A long and wide crack in a glacier, showing sea water in the crack.

New cracks in Pine Island Glacier are getting longer

The new rifts appeared soon after last year’s major calving of iceberg B46, which is about 3 times the size of New York’s Manhattan island. Satellite monitoring suggests a new iceberg of similar proportions will soon be calved.

Zoom in on the Ghost Nebula

Nebula IC 63 – in the direction of our constellation Cassiopeia – is slowly dissipating under the influence of ionizing ultraviolet radiation from a hot, luminous variable star known as Gamma Cas.

New telescope to ‘see inside’ hot Jupiter exoplanets

Exoplanets – worlds orbiting distant suns – are very, very far away. Astronomers are learning what some might look like, and what’s in their atmospheres. Soon – for the first time – a new telescope will be able to “see inside” some exoplanets.

How deep is the ocean?

On average the ocean is 2.3 miles (3.7 km) deep, but many parts are much shallower or deeper. In the deepest zones, life forms have adapted to live in the dark, under crushing water pressure.

This is rock, but it looks like a dry lake bed.

Curiosity finds an ancient oasis on Mars

Scientists working with the Curiosity rover have found salt-enriched rock at a place called Sutton Island on Mars. The rocks suggest ponds with briny water on Mars, billions of years ago.

Saturn is our solar system’s new moon king

Astronomers have found 20 new moons orbiting Saturn, bringing the planet’s total number of moons to 82. That surpasses Jupiter, which has 79.

An ink-blot-looking image of a galaxy cluster, showing long filaments of gas.

Cosmic web fuels stars and supermassive black holes

Astronomers probed the cosmic web, a large-scale structure composed of massive filaments of galaxies separated by giant voids. They found the filaments also contained significant amounts of gas, believed to help fuel the galaxies’ growth.

A metallic-looking sphere with hints of robotic "guts."

Shapeshifting robots for Saturn’s moons

NASA is testing a 3D-printed prototype of unusual mini robots that can roll, fly, float and swim, then morph into a single machine. They’re called Shapeshifters. The team envisions them as a way to explore Saturn’s moons.

2019’s Arctic sea ice minimum 2nd-lowest on record

Arctic sea ice likely reached its smallest extent for 2019 on September 18. At 1.6 million square miles (4.15 million square km), that minimum is now in a 3-way tie for 2nd-smallest in the satellite record.

Simulated black hole.

NASA creates stunning new black hole visualization

For decades, astronomical theorists have told us that a black hole’s powerful gravity would warp the space around it. This new visualization from NASA’s Goddard Space Flight Center is the best yet at showing exactly how.

Found: 3 black holes due to collide

Take one minute to watch a video of a system of 3 galaxies – called SDSS J0849+1114 – all orbiting each other a billion light years from Earth. Each galaxy contains a supermassive black hole, which are circling each other, about to collide.