April 21 - 28 is International Dark Sky Week, a global celebration of the night sky during which like-minded organizations ...

In a close-up of the Rosette Nebula — a stellar nursery 5,200 light-years away — dark clouds of gas and dust are seen being carved by radiation from massive stars. A young star at the upper right is ...

John Grunsfeld has a model of the Hubble Space Telescope on his bookshelf. It's right next to a model of a NASA space shuttle ...

Astronomers detected potential biosignatures on exoplanet K2-18b, but findings remain inconclusive. Claims of alien life ...

Exactly 35 years ago this week, the Hubble Space Telescope was released from the Space Shuttle Discovery cargo hatch. Four ...

Credit: NASA, ESA, STScI/Cover Images To commemorate the 35th anniversary of its launch into orbit, NASA’s Hubble Space ...

Each time biosignatures are found, biologists confront the ambiguous distinction between life and non-life, and the ...

Whether or not we’re alone in the universe is one of the biggest questions in science. A recent study, led by astrophysicist Nikku Madhusudhan at the University of Cambridge, suggests the answer might ...

View a brilliant morning star, enjoy dark skies during New Moon, and take in plenty of deep-sky targets in the sky this week.

"Before Hubble, no generation ever had access to unimaginably vibrant views of space, stretching almost all the way back to ...

According to NASA, the planetary phenomenon will be clearest about 45 minutes before sunrise, low in the eastern sky and ...

Space exploration missions have revealed that polar vortices aren’t uncommon beyond Earth. They’ve been observed throughout ...