A mysterious and intense X-ray source near the black hole shines onto the surface layers of the accretion disk, causing iron atoms to radiate characteristic emission -- what astronomers call the iron K line -- at about 6,000 to 7,000 electron volts. The inner part of the disk is orbiting the black h...

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.

SPACEX successfully lands reusable rocket onto a drone ship: “This was the fifth attempt in 15 months by SpaceX to land one of its rocket boosters on a drone ship; in each of the previous four tries, the rocket reached the ship successfully, but failed to stick the landing. During today’s landing, S

How will the Universe die? Everybody dies. The universe too? Well, probably. What are the current theories about the end of everything? And how creepy exactly? Very creepy but there is still hope and billions of years in between.

ESA's Mars500 crew members Diego Urbina and Romain Charles recorded 15 video diaries from all phases of their simulated mission to Mars, plus hundreds of photos and other video clips. Most of these are available on ESA's Mars500 website (www.esa.int/Mars500), but here is a compilation of their YouTu...

A small saucer-shape capsule carrying a half-pound of rocks and dust collected from an asteroid called Bennu is expected to slam into Earth's atmosphere at a blistering 27,650 mph on Sunday and then parachute down to the ground. NASA senior scientist Amy Simon joined CBS News to discuss the purpose ...

On March 30, 2009, NASA unveiled the new Orion Spacecraft in front of the Smithsonian Air and Space Museum. The module is still undergoing tests, but is planned to make its first journey to the International Space Station in 2015.

Millions of years ago incredible forces ripped apart the Earth’s crust creating our seven continents – each with its own distinct climate, its own distinct terrain and its own unique animal life. From the colourful paradise of South America to the scorching heat of Africa, Seven Worlds: One Planet s

We don’t yet know what the James Webb Space Telescope will uncover. Will we get answers? Will we have more questions? One thing’s certain: The story of us is a never-ending quest for knowledge.

When Wylie Overstreet set up his telescope outside on a whim, he had no idea he would inspire awe in hundreds of strangers on the streets of Los Angeles, reminding them of their common humanity.