The confirmation of the gas giant planet would mark a milestone as the closest planet to Earth that orbits in a habitable ...

What’s in the middle of the Milky Way? In our neck of the cosmos, everything revolves around a supermassive black hole.

New discoveries of objects in the Kuiper Belt have also presented challenges for the Planet Nine theory. The latest is known ...

New research has revealed that mysterious ‘rogue planets’ could be assembling scaled-down planetary systems of their own.

The Cold War spawned its share of sixties space-themed TV shows. The star of them all was ‘Star Trek’. Runner-ups included ...

Answer 17: A meteoroid is a small rocky or metallic body in space. A meteor is the streak of light produced when a meteoroid enters Earth’s atmosphere. A meteorite is a meteoroid that survives passage ...

The Hubble Space Telescope has captured the best picture yet of a high-speed comet visiting our solar system from another ...

A meteorite from Mars, the largest piece ever found on Earth, sold for $5.3 million to an anonymous bidder at a Sotheby's auction in New York on Wednesday.

A decade of observations by NASA’s Hubble Space Telescope has produced the sharpest and most detailed images of the Andromeda galaxy. Zoom in and explore.

First Steps” is a very thoughtful screenplay, as created by Josh Friedman, Eric Pearson, Jeff Kaplan, and Ian Springer.

This paper provides concrete evidence that the expanding and accelerating Universe mathematically expressed by dark energy is ...