We may never be able to build an Alcubierre warp drive, but that should not demoralise us.
The Lisa Pathfinder to take off next week will look for ripples in space.
Scientists observe black hole swallowing a star and ejecting a flare of matter almost at the speed of light.
Nasa's Spitzer Space Telescope has given the space agency a different perspective.
Jeff Bezos has beaten Elon Musk's SpaceX to launching and landing a rocket safely so it can be used again
Buzz Aldrin reveals John F Kennedy's ambitious plan to go to Mars in the 1960s.
Scientists hope to fully automate early-warning system to monitor the Sun's coronal magnetic fields in real time.
Phobos will likely fall apart in between 20 and 40 million years to form a ring around Mars.
Nasa is working on a network of space-based sensors called FireSat to detect fires worldwide 24/7.
The tools include the new experimental Orbiting Carbon Observatory-2 (OCO-2), which was launched in 2014.
Why haven't we contacted aliens yet?
Which exoplanets are similar enough to the Earth that they could actually be habitable?
Nasa wants MIT Csail and Northeastern University to prep Valkyrie to carry out autonomous experiments on Mars.
Country plans solar and moon missions before 2020, besides considering one to Venus.
Lindgren Tweets a wide array of images of views from all over the world