A new NASA mission will capture images of Earth's invisible "halo," the faint light given off by our planet's outermost atmospheric layer, the exosphere, as it morphs and changes in response to the ...

Astronomers are pulling back the curtain on two of the universe’s biggest mysteries: how planets are born and how invisible ...

A strange “Einstein Cross” with an extra, impossible fifth image has revealed the hidden presence of a massive dark matter ...

The interstellar comet 3I/ATLAS, a rare visitor from outside the Solar System, might have been spewing gases for months ...

NASA's Nancy Grace Roman Space Telescope will help scientists better understand our Milky Way galaxy's less sparkly ...

The crescent moon will shine with Jupiter among the stars of Gemini early on Sept. 16. Turn your eyes to the east in the ...

White dwarfs may still host habitable planets. Conditions like tidal heating and migration shape their potential for life. The Sun will eventually die. This will occur when it exhausts the hydrogen ...

Sky This Week is brought to you in part by Celestron. Friday, September 12Mars passes 2° north of 1st-magnitude Spica in Virgo at 4 A.M. EDT, though neither has risen at this time (they rise in ...

While CEX.IO takes the top spot for credit card Bitcoin purchases in 2025, several other exchanges deserve a nod for their ...

Forty light-years away from Earth, in the faint light of the ultracool red dwarf TRAPPIST‑1, a rocky planet slightly larger ...

Today: “You know Aries and Cancer and Draco and Libra. Leo and Pisces and Virgo and Hydra. But do you recall, the pointiest ...

Could an ocean – likely needed to sustain life – even survive on a planet orbiting close to a dead star? The sun will someday ...