From the earliest artificial satellites to today's sophisticated space telescopes and GPS constellations, these marvels of ...

To see Earth from space is to be forever changed by the view. Since Alan Shepard became the first American to lay eyes on our ...

European astronomers report the discovery of a second alien world in the TOI-1422 planetary system located some 500 light ...

Earth’s path around the Sun is not a fixed racetrack but a slowly shifting orbit, and those subtle changes have a long ...

A new study of the red dwarf system TOI-3884 has uncovered rare, persistent spot-crossing signals that reveal unusually detailed information about the star’s magnetic activity and the planet’s orbital ...

The memorandum outlining the Space Force’s new nomenclature was signed in 2023 by then-Lt. Gen. Shawn Bratton, who was the ...

The Mechanics of Earth's Spin Earth rotates once in about 24 hours with respect to the Sun, but once every 23 hours, 56 ...

Astronomers have, for the first time, confirmed a colossal coronal mass ejection from a distant star, a blast so powerful it ...

Sentinel-6B satellite has Poseidon-4 synthetic aperture radar (SAR) altimeter, which monitors seawater height by bouncing ...

Discover the 'Swift Planet' and why Mercury is the fastest world in our solar system, with an incredible speed and a short 88 ...

NASA images show asteroid 2025 OW spinning at extreme speed, improving its orbit forecast and revealing surface details only ...

For the first time, astronomers say they have spotted a giant explosion released by a star beyond our solar system.