The 12 NASA astronauts who walked on the lunar surface between 1969 and 1972 caused the Moon to warm by four degrees Fahrenheit (two degrees Celsius), according to more than 400 reels of NASA tape that were found after having been lost for nearly 40 years.

A 12.4-billion year old starburst galaxy is forming stars 1,000 times faster than the Milky Way, according to a team of scientists who studied it using the Atacama Large Millimeter/submillimeter Array (ALMA) radio telescope in Chile.

Mars-sized object could be perturbing the Kuiper Belt

Scientists worldwide turn telescopes to "alien megastructure" star

X-ray signal may offer proof of dark matter

Water began flooding Earth 135 million years sooner than thought, new research indicates.

MAVEN orbiter finds hydrogen layer that spreads 21,000 miles from Mars

New habitable planet forming every year: ASTRON