Learn about the size, temperature, and colour of each planet, and discover why Pluto is no longer considered a planet.

Called Kepler-51, the Sun-like yellow dwarf star was found in 2012 to have three exoplanets in its orbit; each, it would turn ...

Earth spins as it orbits the Sun, and the solar system is orbiting the galactic center. So, if I go outside and look up, in ...

The telescope will catalogue billions of new objects and produce a new map of the entire night sky every three days with the ...

It proved the Andromeda Nebula is immensely distant from Earth, demonstrating that the Milky Way is not the whole universe, ...

The Firefly Sparkle Galaxy is the first Milky Way-sized galaxy to ever be found while still in the process of forming.

It looks at how streams of interstellar bodies might escape a solar system and how they would then move through the Milky Way. While it is always possible for a random asteroid or comet to have a ...

For two decades now, the iconic twin Voyager spacecraft have been quietly overturning everything we thought we knew about the ...

Veiled in gas and clouds, the Milky Way’s center does not easily give ... One of them has yielded the first compelling evidence of a binary star system — called D9 — orbiting the galactic ...

The discovery could lead to the finding of more planets. Astrophysicists are marveling at the latest celestial discovery made near the Milky Way's supermassive black hole. Scientists have ...

If Brown’s hidden world is real, Rubin will almost certainly find it or strong indirect evidence that it exists. “In the ...