The six-year results from the Dark Energy Survey highlight unresolved tensions in standard cosmological theory ...

"When Arp 220 is observed as a whole, it's one of the best places in the universe for astronomers to study how gravity, star ...

The James Webb Space Telescope has confirmed the most distant, early galaxy in the known universe. The new contender, MoM-z14, is visible just 280 million years after the Big Bang.

Astronomers may have discovered a new Earth-sized exoplanet orbiting a Sunlike star just 146 light-years away. Before you ...

Observations by NASA's James Webb Space Telescope and Chandra X-ray Observatory are providing fresh evidence that the ...

The month is packed with skywatching highlights—including six visible planets, an annular solar eclipse, and the Milky Way’s bright core returning to view in the Northern Hemisphere.

Sky This Week is brought to you in part by Celestron. Friday, January 30The Moon passes 4° north of Jupiter this evening at 9 ...

From degeneracy to galactic archaeology, white dwarfs are helping scientists make sense of some of the universe's burning mysteries.

Pulsating remnants of stars hint at a clump of invisible matter thought to be about 10 million times the sun’s mass.

Massive stars have an outsized influence on their environment and the galaxies they call home. These behemoths have the ...

You can predict the Sun’s distant future by looking far beyond the Solar System. Across the Milky Way, astronomers study ...

Though Earth Must Die is pleasantly compact—I finished in just shy of eight hours—it's full of conundrums, and while it might ...