WASHINGTON, Feb 14 (Reuters) - Astronomers have observed a planetary system that challenges current planet formation theories, with a rocky planet that formed beyond the orbits of its gaseous ...

The James Webb Space Telescope has detected the first-ever spectral signature of hydrogen sulfide around a massive gas giant planet.

Now researchers think they've solved the mystery of one of the longest star-dimming events ever recorded. The star, called ASASSN-24fw, may have disappeared behind a giant planet with an enormous ...

The Hubble Space Telescope time-lapse captured footage of Jupiter, Saturn, Uranus and Neptune. Credit: SCIENCE: NASA, ESA, Amy Simon (NASA-GSFC), Michael H. Wong (UC Berkeley) / VISUALIZATION: Joseph ...

Two next-generation satellite missions announced Thursday will help NASA better understand Earth and improve capabilities to ...

This weekend, six planets are set to share the sky in a rare “planet parade,” giving stargazers a short but magical window to ...

Ars has reported on one of the amendments, which would authorize NASA to take steps toward a “commercial” deep space program ...

Jupiter, without a doubt, is the biggest planet in our solar system. But it turns out that it is not quite as large - by ever ...

A NASA mission is underway to map the heliosphere, which is a huge protective bubble around the solar system that was created by the sun.

The Moon readies for Artemis II, Orion shines bright, and a planetary parade marches across the night sky NASA’s Artemis II mission has its first opportunity to launch to the moon, Orion the Hunter ...

CAPE CANAVERAL SPACE FORCE STATION — NASA and Blue Origin are planning to launch the ESCAPADE mission, where a pair of satellites will study Mars' magnetosphere. ESCAPADE will eventually help future ...

KENNEDY SPACE CENTER — SpaceX’s Falcon 9 rocket pierced the Wednesday morning sky as it launched three spacecraft from NASA and NOAA that will study the solar system’s “bubble,” collect information on ...