Astronomy

Latest about Astronomy

What is the moon phase today? Lunar phases 2025

By Tariq Malik, Daisy Dobrijevic last updated

Reference See what moon phase it is tonight and find out when you can see the rest of the moon phases for 2025.

Reference
laptop graphic showing a comet on the screen and the words live streaming in the top right corner.

Watch comets Lemmon and SWAN make their closest approach to Earth live online on Oct. 20

By Daisy Dobrijevic published

The livestream is scheduled to start at 1:30 p.m. EDT (1730 GMT) on Oct. 20.

Comets
A close up of a the reddish-brown surface of Mars with white streaks across it

If life on Mars exists, it may be preserved in a frozen time capsule

By Samantha Mathewson published

If life ever existed on Mars, traces of it might still be frozen beneath the planet’s icy surface.

Mars
An illustration showing glowing planet-forming rings with a burst of water streaking across them an a planet in the distance

For the 1st time, scientists discovered 'heavy water' in a disk forming exoplanets

By Keith Cooper published

V883 Orionis is a young star that formed in the Orion Nebula half a million years ago.

Exoplanets
two people in cleansuits look at a rectangular shoe-box-sized satellite covered in gold foil sitting on a laboratory workbench

Could the world's 1st private space telescope help find stars with habitable exoplanets?

By Tereza Pultarova published

The world's first commercial astronomy space telescope will look for stars that may host habitable exoplanets.

Exoplanets
In this long exposure image, a series of rings and streaks in concentric circles fill the colorful blue, orange, and green night sky with a domed roof of an observatory below.

Stars and satellites streak over Gemini North telescope | Space photo of the day for Oct. 17, 2025

By Kenna Hughes-Castleberry published

A striking new image from the Gemini North telescope captures the changing face of the night sky, where stars mingle ever more frequently with satellite trails.

Astronomy
A gray scale image showing a labeled "dune crest" at the edge of a Martian gulley with wind patterns showing the geology of the formation.

Dry ice may burrow through Mars like sandworms in 'Dune'

By Samantha Mathewson published

Blocks of carbon dioxide ice appear to carve mysterious gullies on Mars as they melt down dune slopes and blast away sand.

Mars
An artist’s impression of a tidal disruption event, where a star gets too close to a black hole and is torn apart, its debris forming an accreting disk of material around the black hole.

Rule-breaking black hole destroys star in puzzling way: 'This is truly extraordinary'

By Keith Cooper published

The so-called tidal disruption event also produced two puzzling delayed outbursts.

Black Holes
An image of Earth from space, with bright brown land streaked with a dark green river on the right side of the image with a curved ridge from left to right meeting the river toward the bottom of the image

Where the ridge meets the river | Space photo of the day for Oct. 16, 2025

By Kenna Hughes-Castleberry published

From above Earth, LandSat 9's keen eye captures a stunning Y-shaped meeting of ridge and river in China's Tarim Basin.

Earth
A series of blue and red blurs of light swirl around stars in a deep space image

Not-so-dark matter? Mysterious substance might leave red and blue 'fingerprints' on light

By Sharmila Kuthunur published

A new study suggests dark matter could subtly tint or polarize light, leaving faint color clues that next-generation telescopes might detect.

Dark Universe
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