A telescope can reveal so much of the night sky, including Saturn’s rings and the Moon’s craters. But choosing the right telescope is a difficult decision – here’s what you need to know.
Stargazers in Bourke, New South Wales, Australia.
David Trood/Getty Images
People have been looking up at the stars for thousands of years. Here’s where to start if you want to learn more about the night sky – from spotting easy-to-find constellations to using the best apps.
Black holes use gravity to pull matter into them.
NASA/Chandra X-ray Observatory/M.Weiss via AP
A newly discovered planet that should be too big to have formed around a tiny star is throwing into question what researchers know about planet formation.
Uranus is the coldest planet in the solar system.
NASA/JPL
The universe is expanding faster than physicists would expect. To figure out what processes underlie this fast expansion rate, some researchers are first trying to rule out what processes can’t.
The stark landscape of the Moon as viewed by the Apollo 12 astronauts on their return to Earth.
NASA / The Planetary Society
Some dark craters on the Moon are never exposed to light − ice could be hiding in these permanently shadowed regions, and India’s Chandrayaan-3 mission marked a big step toward finding it.