Russia's Soyuz spacecraft can now launch crews to the International Space Station in a single day. See how it works in this SPACE.com infographic.
Damaged at launch, the 1970s Skylab required dramatic on-orbit repairs before it was usable. See how it worked.
The ammonia system is one of several cooling loops that circulate liquids throughout the International Space Station.
After decades of deterioration, Star Trek's Galileo shuttlecraft mockup is being restored to its original glory.
The mission of the Kepler Space Telescope is to identify and characterize Earth-size planets in the habitable zones of nearby stars.
Scientists have discovered three super-Earths circling two different stars more than 1,000 light-years away.
The ambitious plan would have the goal of moving a small asteroid to a new orbit near the Earth by the year 2025.
The Cosmic Microwave Background radiation tells us the age and composition of the universe and raises new questions that must be answered.
Take an in-depth look at the Alpha Magnetic Spectrometer will hunt dark matter, cosmic rays and antimatter galaxies.
Amazon founder Jeff Bezos plans to raise sunken Apollo 11 moon rocket engines from the ocean floor. Learn more about the Saturn V rocket's F-1 engines in this SPACE.com infographic.
Unlike most exoplanet discoveries, the system of HR 8799 can be directly viewed by Earth-based telescopes.
Made up of dozens of small radio telescope dishes, the ALMA telescope will be one of the most powerful in the world when finished.
A fragment of the Chinese Fengyun 1C weather satellite, destroyed on purpose in 2007,damaged the Russian nanosatellite BLITS on Jan. 22, 2013.
Already tested as a cargo carrier, the Dragon spacecraft can also be fitted out to shuttle passengers to low orbit and to the International Space Station.
Since the 1960s, humans have invaded our neighboring planet Mars with swarms of spacecraft. Only half of the attempts ever succeeded.
The Feb. 15, 2013 meteor blast over Chelyabinsk, Russia, damaged hundreds of buildings and injured more than 1,000 people.