The secretive mission of the U.S. Air Force X-37B mini-space plane has winged past 670 days of flight – just 48 days shy from setting a long duration record for the program.

Chandrayaan-2, which consists of an orbiter, lander and rover, is scheduled to launch Sunday evening (July 14).

Skywatcher and satellite tracker Ralf Vandebergh recently caught a rare glimpse of the U.S. Air Force's secretive vehicle doing its thing in orbit.

Analysts at SatelliteInternet.com used data from the National UFO Reporting Center and the US Census to determine you might have a higher likelihood of spotting a UFO in the US.

In July, the Mutual UFO Network (MUFON) celebrates 50 years of investigating and promoting research about unidentified flying objects. Do we know any more now than we did in 1969?

The United Nations Office for Outer Space Affairs and the China Manned Space Agency have announced the winners of their joint opportunity to conduct experiments onboard the China Space Station.

A new weapon could end up aiding exploration of the final frontier.

Two U.S. senators have introduced a bill that seeks to preserve and protect the historic Apollo 11 landing site.

India is now gearing up for the July launch of Chandrayaan-2, a robotic lunar orbiter/lander/rover combo that is slated to touch down at a predetermined site close to the lunar south pole.

Luxembourg-based Intelsat reports that its Intelsat 29E satellite (IS-29E) is now a total loss, after having reported earlier that the spacecraft suffered an anomaly.

A preliminary investigation puts the apparent blame for Beresheet's April 11 moon crash on a "manual command" that was entered into the spacecraft's computer.

A NASA piggyback experiment may have survived the April 11 crash of Israel's Beresheet moon lander, experts said.

Israel's robotic Beresheet moon lander is nearing its moment of truth: an epic lunar touchdown attempt scheduled to occur between 3 p.m. and 4 p.m. EDT on Thursday (April 11).

Beresheet will slip into orbit around the moon tomorrow morning (April 4) — if it aces a crucial engine burn.

NASA put a small, laser-reflecting instrument on Israel's Beresheet lunar lander. Here's why.

NASA's Lunar Reconnaissance Orbiter continues to monitor the whereabouts and wanderings of China's Yutu 2 rover on the moon's far side.

Russia's SIRIUS (Scientific International Research in Unique Terrestrial Station) experiment is now underway, simulating a flight to the moon.

Space mining could help open up the inner solar system to exploration.

Everything is going well for China's Chang'e 4 farside moon mission, according to Chinese media reports.

A two-week-long moon-Mars mission simulation will come to an end Wednesday (March 6).

The Soviet Union launched the Cosmos 482 Venus probe on March 31, 1972. But the failed Venus craft is crashing back to Earth soon.

China’s Chang'e 4 lander and rover made it through their first night on the moon's far side, surviving temperatures that plunged as low as minus 310 degrees Fahrenheit (minus 190 degrees Celsius).

This year we celebrate the 50th anniversary of Apollo 11. And one small step (and giant leap) will celebrate that milestone in a distinct, creative way.

The secretive mission of a U.S. Air Force X-37B miniature space plane just winged past 500 days in Earth orbit.