How do scientists know the mass of the Universe? Measuring it has traditionally relied on knowing how...
A new flagship observatory is about to launch to space and join the ranks of its powerful...
The Neil Gehrels Swift Observatory, launched in 2004 to study gamma-ray bursts (GRBs), has vastly outlived its...
Artist’s illustration of the Nancy Grace Roman Space Telescope. Credit: NASA’s Goddard Space Flight CenterUsing a donated...
Get a Grip! - New Technologies for Orbital Salvage - YouTube Watch On On Episode 225 of...
August's "almost Blood Moon" partial lunar eclipse has come and gone, delighting stargazers with a gorgeous natural...
On Aug. 29, 1965, two NASA astronauts returned from their record-breaking Gemini 5 mission.Astronauts Gordon Cooper and...
SpaceX just took another step toward the highly anticipated next test flight of its Starship megarocket.The company...
Nearly a decade ago, I found myself laughing alongside one of the most iconic women in astronomy....
The Nancy Grace Roman Space Telescope is about to launch on an incredible adventure to help scientists...
Welcome back to our series on Interstellar Travel, where we look at the many proposals made for...
Since the dawn of human space exploration, astronauts, scientists, and engineers have examined the short- and long-term...
A huge SpaceX rocket is just days away from launching NASA's next great observatory into space: the...
The Celestron StarSense Explorer DX 130AZ is one of the best telescopes for beginner-to-intermediate stargazers who want...
Stargazers have trigger words — total, bright, peak, maximum, best. But observing the sky is often more...
Virgin Galactic is letting the public vote on the name of its second next-generation 'Delta-class' spaceplane. Credit:...
The United States will soon have a new service academy.President Donald Trump today (Aug. 28) signed an...
