NASA's Space Launch System is built to return astronauts to the moon. Photos and one chart show how it compares to other rockets in size and strength.

NASA built a new mega-rocket, the Space Launch System, to return astronauts to the moon. SLS, which stands taller than the Statue of Liberty, launched for the first time Wednesday. See how SLS ...

The Space Launch System rocket that will propel an uncrewed Orion capsule to the moon in the Artemis 1 mission is the most powerful rocket NASA has ever built. It weighs 5.75 million pounds when ...

NASA’s new SLS moon rocket, short for Space Launch System, is 41 feet shorter than the Saturn V rockets used during Apollo a half-century ago. AP “I want to underscore that this is a test ...

NASA is preparing to map the boundary where the solar wind meets interstellar space in its Interstellar Mapping and Acceleration Probe, set for launch sometime after September of this year. IMAP ...

NASA officials have said their SLS mega-rocket program is "unaffordable." The program has long been criticized for a lack of transparency over its growing budget. Officials agree the SLS budget ...

NASA is just hours away from finally sending its big new moon rocket on its first test flight. The launch window opens at 1:04 a.m. Eastern. The 32-story-tall behemoth is being prepped by workers ...

NASA sent the Northrop Grumman’s Antares rocket on an expedition to the International Space Station to deliver supplies and conduct investigations in a Tuesday night launch that NASA said could ...