Featured Articles

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This artist concept portrays the brown dwarf W1935, which exhibits signs of glowing methane—possibly caused by aurorae!

This artist concept portrays the brown dwarf W1935, which exhibits signs of glowing methane—possibly caused by aurorae!

Brown Dwarf Aurorae

Brown dwarf W1935 exhibits signs of glowing methane—possibly caused by aurorae!

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Cas A from Chandra
Hunting the Green Monster

Cassiopeia A is one astronomical object that looks exactly like what it is—a star that exploded 350 years ago!

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HYan Image
Just Wonderful Space Telescope News

JWST launches the first day of astronomy’s big meeting with news about science, technology, and galaxies!

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Artist impression of the debris disk surrounding star HD53143.

Artist impression of the debris disk surrounding star HD53143. Credit: ALMA (ESO/NAOJ/NRAO); M. Weiss (NRAO/AUI/NSF)

Disks and Planet Formation

The connection between disks and planet formation continues to expand as astronomers view them in new detail.

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ESA/XMM-Newton; NASA/Chandra and SDSS
A Luminous Pulsar

Old data reveal a bright new pulsar far, far away.

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Credit: Figure 2 of Barr & Bruck Syal (2017)

Hydrocode simulation of an impact of a Venus-sized rock/iron planet colliding with a six Earth-mass planet. The collision creates a disk of rock fragments, liquid, and vapor massive enough to create a moon of 0.1 Earth masses, large enough to be detected by Kepler. Colors indicate the density of material, with solids depicted by orange/red hues, and liquid/vapor depicted by green/blue hues.

Can We Find Exomoons?

Could exomoons be large enough for Kepler to detect?

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Artist Impression of Supernova
Youngest Supernova Ever Observed

Astronomers reveal a rare view of a dying, supermassive star.

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Image by tonynetone/Flickr
The Season of Eclipses

This week's penumbral lunar eclipse is one of two eclipse occurring this month.

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Red dwarf with its powerful white dwarf pulsar companion
White Dwarf Pulsar!

A new type of pulsar is discovered sending powerful beams to its binary partner.

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Ahuna Mons, NASA
Lone Volcano

Is Ceres’s lone volcano, Ahuna Mons, truly alone?

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Combined X-ray and infrared image of W44 from Herschel SPIRE/PACS/ESA and ESA/XMM-Newton
Finding a Stray

Stray black holes in our galaxy may be getting a little easier to find.

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Stellarium
Comet 45P at Its Brightest

Lucky hunting for a faint comet…

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Jessie Eastland, Wikipedia
A Bit of Earth—on the Moon!

Mysterious emanations from the Moon may offer clues to Earth’s deep past.

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SA/NASA/JPL-Caltech
The Great Repeller

A cosmic void is pushing us around!

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