Sign Up for Our Amazing Newsletter!
A daily update by email. Science news, great photos, sky alerts.
Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.
Watch night launch of SpaceX Falcon Heavy June 24
Liftoff is targeted at 11:30 p.m. EDT, with a 4-hour launch window. SpaceX is calling the launch its most difficult ever, because the rocket must release 24 satellites into 3 different orbits.
June 23, 2019
Mars Helicopter passes key tests
The Mars Helicopter will launch with Mars 2020. It'll be the first vehicle in history to attempt to establish the viability of heavier-than-air vehicular flight on another planet. Plus ... space engineers celebrate with a selfie after attaching the Mars 2020 rover's remote sensing mast.
June 18, 2019
US astronomers speak on SpaceX Starlink satellites
The American Astronomical Society - chief organization for US astronomers - said it is in conversations with SpaceX about the impending launch of 12,000 Starlink satellites. The astronomers worry the satellites will interfere with their work of understanding the universe.
June 12, 2019
IAU invites countries to name exoplanets
Nearly 100 countries have already signed up to organize national campaigns, to provide the public with an opportunity to vote. The deadline is July 30 to express interest in organizing a national campaign. The IAU will announce results in December.
June 11, 2019
Waterfall illusion: Still objects seem to move
Check out this optical illusion and find out what it says about your brain.
June 9, 2019
Did supernovae blasts prompt humans to walk upright?
A new study suggests a series of supernovae - peaking 2.6 million years ago - might have triggered earthly events that promoted proto-humans’ upright walking.
June 2, 2019
How bright will the Starlink satellites be?
Will Elon Musk's plan to launch 12,000 Starlink satellites - aimed at bringing internet access to the world - interfere with astronomy? Astronomer Guy Ottewell ponders this question.
June 1, 2019
Clocks, gravity and the limits of relativity
A hundred years ago today, Einstein’s theory of gravity was first put to the test when Arthur Eddington observed light “bending” around the sun during a solar eclipse. A century later, scientists are still searching for the limits of the theory.
May 29, 2019
Watch ISS spacewalk May 29
Watch 2 Russian cosmonauts perform a spacewalk outside the International Space Station (ISS) on Wednesday, May 29.
May 28, 2019
Help NASA decide where to land on asteroid
Citizen scientists: NASA’s OSIRIS-REx mission needs your help choosing its sample collection site on asteroid Bennu ... and your extra eyes to look for whatever else might be interesting.
May 27, 2019
