On March 6, 1986, the Soviet Union's Vega 1 spacecraft flew by Halley's Comet. Vega 1 was the first of five missions to fly ...

A chemical found in the atmosphere around an exoplanet that leads researchers to believe the planet may harbor life is called ...

Intuitive Machines' Athena moon lander is "alive," but it's not yet known what mission objectives can still be met.

Astronomers are ready to search for the fingerprints of life in faraway planetary atmospheres. But first, they need to know ...

The spacecraft makes its sixth and final flyby ... The shower is the first of two each year created by Halley's Comet debris. The celestial event will be active from April 20 to May 21.

It came from outer space! In the early morning of June 30, 1908, people in the remote Tunguska region of Siberia beheld an ...

But the spacecraft autonomously maneuvered to find ... The water molecules presumably were delivered over billions of years by comet impacts and interactions between moon dust and the electrically ...

YR4, which orbits the sun every four years and periodically crosses Earth's orbit. The nature of its orbit makes it a ...

A comet that is visible during the daytime is ... Friday, January 10, 2025: The BepiColombo spacecraft has made its sixth and final flyby of the closest planet to the sun, Mercury, capturing ...

Meganne Christian describes what it's like to undergo her first block of astronaut training at the European Astronaut Centre in Cologne, Germany.