A tour of Quito Ecuador in South America. We visited the Middle of the World and Museum. The country was aptly named after the equator when Finnish scientists in the 1800s declared it the prime place on Earth to measure the equator’s bulge. Thanks to this, Mount Chimborazo (6310m) in the country’s

How big can they get? What's the largest so far detected? Where does an 18 billion solar mass black hole hide? We've never seen them directly, yet we know they are there. Lurking within dense star clusters or wandering the dust lanes of the galaxy. Where they prey on stars. Or swallow planets whole....

Nasa's asteroid Vesta in 3-D. Put on your 3-D glasses for this ride over asteroid Vesta.

What does it take to get a spacecraft to Mars? This 60-second video covers a few key things to remember when planning a trip to the Red Planet.

Brian Randolph Greene is an American theoretical physicist and string theorist. He has been a professor at Columbia University since 1996 and chairman of the World Science Festival since co-founding it in 2008. He stopped by The Late Night Show with Stephen Colbert to demonstrate an exciting new sci...

First Photo of a Black Hole May Be Revealed. Here’s How to Follow the Announcement. Astronomers at last may have captured images of the darkest entities in the cosmos. April 11, 2019 LIVE Press Conference.

The SpaceX Crew Dragon capsule splashed down in the Atlantic Ocean on Mar. 8, 2019.

49 years ago, Apollo 11 astronauts achieved something that is still considered the benchmark of human innovation: they successfully landed on the moon and returned safely back to Earth. The final moments that lead up to the historic event were full of anticipation and excitement for the Apollo team.

Launched on Feb. 11, 2010, the Solar Dynamics Observatory, or SDO, is the most advanced spacecraft ever designed to study the sun. On June 5 2012, SDO collected images of the rarest predictable solar event--the transit of Venus across the face of the sun. This event happens in pairs eight years apa...

UFO? Try top secret military aircraft. These are the most mysterious military airplanes, jets and space planes flying today, including the infamous Aurora black triangle, the Boeing X-37, the new Northrop Grumman unmanned RQ-180 stealth drone, the Blackstar space bomber, and stealth Black Hawk helic...