Astronomers have identified a giant planet circling a tiny red dwarf star at a distance so extreme that it sits about 690 ...

Far from our solar system, astronomers have finally watched a star consume one of its own planets, catching in real time a ...

Venus could make a brief appearance this weekend as it passes between the Earth and the sun. Just be warned: It won't be easy to spot in the sun's glow, according to astronomers. The orbit Venus takes ...

Our sun is about halfway through its life, which means Earth is as well. After a star exhausts its hydrogen nuclear fuel, its diameter expands more than a hundredfold, engulfing any unlucky planets in ...

Earth's orbit is an ellipse, not a perfect circle. Earth's distance from the Sun varies by about 3 million miles throughout the year. Earth's orbit's semimajor axis is approximately 93 million miles.

The Meteosat Third Generation – Imager 1 (MTG‑I1) view, captured at 6am UK time, shows the planet’s day–night terminator ...

The Terra Hunting Experiment will track the wobbles of dozens of stars nightly for years in the most focused hunt yet for an ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. Researchers have detected four small exoplanets orbiting closely around Barnard's Star. This ...

How common are Earth-like planets in the universe? When I started working on supernova explosions, I never imagined that my ...

TRAPPIST-1e, an Earth-sized world in the system’s habitable zone, is drawing scientific attention as researchers hunt for ...

Earth's climate has swung between ice ages and warmer periods for millions of years, driven by subtle changes in our planet's ...