Orbit

A new mathematical study suggests that the abandoned Ascent Stage of the Apollo 11 mission's Eagle Lunar Module, long believed to have crashed on the Moon in 1969, may be circling our largest natural satellite in a stable orbit.

Debris orbiting in high Earth orbit is not being tracked closely enough, according to the results of a new survey, and could pose an unexpected threat to important satellites that provide communication, weather observation and navigation services.

SpaceX has announced that it will mount a sun visor on each of its Starlink satellites and have them perform controlled maneuvers, to make them less visible to the public and astronomers making detailed observations of the night sky.

The introduction of 26 thousand new megaconstellation satellites could have a significant effect on ground-based astronomy, according to a new study commissioned by the European Southern Observatory.

NASA has completed a milestone test of the James Webb Space Telescope’s (JWST) sunshield, which will protect the flagship observatory from the Sun’s radiation as it unravels the secrets of the cosmos.

ESA has released a breathtaking mosaic of the Red Planet, stitched together from images taken by the Mars Express spacecraft.

ESA has been forced to reposition its Aeolus satellite to avoid a collision with a member of SpaceX’s Starlink mega constellation.

If it was in our solar system, the orbit of exoplanet HR 5183 b would swing from the asteroid belt to way out beyond Neptune.

India's ambitious Chandrayaan-2 mission, which is comprised of an orbiter, a lander, and a rover, has successfully made orbit around the Moon.

Space flight requires quite a lot of single-use machinery, and that gets expensive and wasteful. Now ESA has outlined its reusable Space Rider capsule, which would carry scientific equipment to the edge of space and back several times over.

Hungarian astronomers have spotted two new pseudo-satellites – in the form of clouds of dust – caught in the gravitational tug-of-war between the Earth and the Moon.

With dozens of moons whizzing around Jupiter, it makes sense that a few have slipped under the radar, but the latest discovery is still a surprisingly large haul. Astronomers have announced the detection of 12 new moons orbiting Jupiter, including one particularly reckless “oddball.”