The trans-Neptunian object Altjira, 44 times farther from the Sun than Earth is, could be the second known trinary, ...

Upon discovery, astronomers were surprised to discover that the comet was already quite bright, shining at a magnitude of 10.

Pluto may not count as a planet anymore ... It shows the moon traversing the face of the sun during a solar eclipse on July 22, 2009. Right click to download a larger version of this image.

The former NASA astrophysicist is renowned for contributions to advancing the scientific study and public appreciation of solar eclipses. Espenak's love of the night sky began, like most ...

Further studies are needed to determine whether K2-18b, which orbits a star 120 light-years away, is inhabited, or even ...

In 1973 several of us, who were graduate students or friends at the Rocky Mountain Biological Laboratory (RMBL) in Gothic, CO ...

Apr. 11, 2025 — The UK government needs to go beyond offering subsidies for low-carbon technologies (LCTs) like electric cars and solar panels for energy and heating, if it is to meet its net ...

Solar Wave Squeezed Jupiter's Magnetic Shield to Unleash Heat Apr. 3, 2025 — A solar wind event from 2017 that hit Jupiter and compressed its magnetosphere created a hot region spanning half ...

May is Mental Health Awareness Month, an annual observance established by Mental Health America in 1949 to emphasize the ...