space telescopes
China Is Aiming to Develop Miles-Wide, 'Ultra-Large' Spacecraft
A new five-year plan highlights an 'urgent need' to develop megaprojects in space, such as human habitats and space-based solar power plants.
Russia Has Lost Control of Its Only Space Telescope
Mission leads are trying to reestablish contact with the Spektr-R satellite, which carries a 10-meter wide radio dish.
Hubble Space Telescope in ‘Sleep Mode’ After Gyroscope Failure
The gyroscopes are some of the most important instruments on the Hubble Space Telescope, but this isn’t the first time they’ve failed.
We Have 12 New Hubble Images of the Universe and It's Looking Gorgeous
The Hubble Space Telescope is filling out its gallery of distant Messier objects.
We Have 12 New Hubble Images of the Universe and It's Looking Gorgeous
The Hubble Space Telescope is filling out its gallery of distant Messier objects.
Europe Has Added 1.1 Billion Stars to Its Milky Way Map
European Space Agency releases first data from Gaia star mapping mission.
The Doomed Hitomi Telescope Had a Spectacular View of the Universe As It Died
It viewed a monster tangle of galaxies known as Perseus.
Rainbow Cloud of Space Glitter and Lasers Could Image Alien Worlds
Orbiting Rainbows proposes replacing giant mirrored telescopes with clouds of reflective dust.