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....

Private spaceflight company SpaceX has successfully landed its first-stage booster rocket on an ocean platform in the Atlantic Ocean, marking just the second time that a reusable rocket has been safely brought back to Earth.

Neil Armstrong presents a Google moon video together with original footage taken from the Eagle module during his landing 20 July 1969. Captured from a webcast from the House Committee on Science, Space and Technology Hearing on NASA Human Spaceflight 22 Sep 2011.
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On November 6th, 2015 UP Aerospace Inc. launched the 20-foot (6 meter) tall SL-10 rocket into near-space. The mission: deploy the Maraia Capsule testing the aerodynamics and stability of the payload on re-entry to the atmosphere. The rocket reached an altitude of 396,000ft (120,700 meters) and speed...

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.

"It is called a supermoon because this is a very noticeable alignment," Dr. James Garvin, chief scientist at NASA's Goddard Space Flight Center, said in a statement accompanying a new video on the topic. "The 'super' in supermoon is really just the appearance of being closer."

For the best view, ...

Video of SpaceX's 5.2m fairing—designed in-house by SpaceX—undergoing testing in the world's largest vacuum chamber at NASA Glenn Research Center -- Plum Brook Station. SpaceX's fairing is used to protect a satellite during launch. Separation occurs when the rocket is traveling over 4x faster than a

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...

Felix Baumgartner´s epic jump from the edge of space. the red Bull Stratos Projekt breaks 4 records in one. Felix Baumgartner reaches speed higher than the speed of sound.

Liftoff of Falcon 9 and Dragon from Launch Complex 40 in Cape Canaveral, Fl. March 1, 2013.