Engineering
SpaceX Racks Up Another Sea Landing [Video]
The second successful landing of a Falcon 9 booster on a floating barge is a milestone for the aerospace company
Stories by SPACE.com
Space & Physics
Nearby Star Harbors Trio of Earth-Size Worlds
Astronomers speculate that the three planets orbiting the small, cool star TRAPPIST-1 could support life
Space & Physics
SpaceX May Launch Private Mars Mission as Early as 2018
The company is said to be demonstrating technology to land large payloads
Space & Physics
Distant Dwarf Planet Has Its Own Moon
Orbiting object could hold lessons about the remote world Makemake
Space & Physics
New Horizons Has Big Plans beyond Pluto
An extended mission for the space probe would take it to a small Kuiper Belt object in 2019
Space & Physics
Gravitational Waves from Black Hole Megamergers Are Weaker Than Predicted
A search for low-frequency “hums” from supermassive black holes comes up empty
Space & Physics
British Astronaut Tim Peake Sets Off-World Record Running Marathon in Space
European Space Agency astronaut used an International Space Station treadmill to march 26.2 miles (42.2 kilometers) to the “finish line”
Space & Physics
Beyond Earth Day: Where Will Alien Life Be Discovered First?
On Earth Day Space.com and ThinkGeek.com consider where else in the solar system life might thrive
Space & Physics
Possible Light Flash from Black Hole Collision Spotted
Scientists are "cautiously saying" the light may be associated with the black hole merger detected via gravitational waves
Space & Physics
Kepler Planet-Hunting Spacecraft Bounces Back after Glitch
The planet-hunting telescope has resumed communication with Earth and may be able to start science research again soon
Technology
SpaceX Sticks a Rocket Landing at Sea in Historic First
Following a smooth cargo launch, a reusable Falcon 9 rocket booster touches down successfully on a drone ship
Space & Physics
Lab-Grown "Comet" Forms Potential Ingredient for Life
Scientists blast comet-like ice with radiation like that in space, creating a key building block for life
Space & Physics
Supermassive Black Hole Found in Unlikely Cosmic Backwater
The discovery of an object 17 billion times the sun's mass may mean many more such monsters are out there
Space & Physics
NASA’s Decaying Spaceflight Facilities Preserved in Photos
In Abandoned in Place photographer Roland Miller takes readers on a tour of the right stuff turned to relics
Space & Physics
Blue Origin Launches and Lands Rocket for the Third Time
Jeff Bezos's private spaceflight company sticks another vertical landing in unmanned test
Space & Physics
Astronomers Snap Best-Yet Baby Pictures of Alien Planets
Images reveal what may be an Earth-like world forming around the nearby star TW Hydrae
Space & Physics
New Alien Planet Boasts Rare Triple Suns
KELT-4Ab is only the fourth known system to contain three stars
Space & Physics
Jupiter Struck by an Asteroid or a Comet [Video]
Amateur astronomer captures stunning time-lapse video of the impact
Space & Physics
Volcanic Activity May Have Caused Lunar Poles to Wander
Ice deposits that formed in craters on opposite sides of the moon suggest it once rotated on a different axis
Space & Physics
Astronomers See Changes on Dwarf Planet's Surface
Ground-based telescopes bolster the case for hazes emanating from Ceres's mysterious bright spots
