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How Gaia could help find Dyson spheres
Dyson spheres are hypothetical megastructures built by extraterrestrials for the purpose of harvesting all of a star's energy. Here's how the European Space Agency's Gaia mission might help find one.
August 30, 2018
Could ETs use star mergers to communicate?
When 2 extremely dense neutron stars orbit each other closely, they spiral inward over time and eventually merge. Such mergers are powerful. Could advanced civilizations be using them to signal across the cosmos?
August 29, 2018
Astronomers map a starburst galaxy
Astronomers made the sharpest and clearest map yet of a distant starburst galaxy, where stars form 1,000 times faster than in our Milky Way. They're now calling this galaxy an "unstoppable monster."
August 29, 2018
We’ve got a landing site on asteroid Ryugu
The lander for Hayabusa2 mission at asteroid Ryugu is due to touch down on October 3. Now the site has been chosen! This Japanese mission will collect samples from the asteroid and bring them back to Earth.
August 27, 2018
OSIRIS-REx sets sights on asteroid Bennu
NASA’s 1st mission to a near-Earth asteroid is now on its final approach, and the space agency released the craft's 1st images late last week. It'll arrive at asteroid Bennu on December 3.
August 26, 2018
NASA Selfies app lets you play astronaut
We've had lots of fun playing with this app over the past few days. It lets you generate snapshots of yourself in a virtual spacesuit, posing in front of places like the Orion Nebula or the center of the Milky Way galaxy.
August 25, 2018
Astronomers see a baby planet growing
They've confirmed for the 1st time that this newly formed planet - labeled PDS 70b - is still gathering material from the dust and gas around its star. They're literally watching this new world develop and grow.
August 24, 2018
Water worlds are likely common
Earth is a water world, and a new study suggests there may be many more water worlds out there, including some larger and wetter than our planet.
August 23, 2018
InSight halfway there! Update on Opportunity rover
Updates on 2 Mars missions, 1 old and 1 new. Insight is on course for a November touchdown. The 15-year-old Opportunity rover lost contact with Earth months ago, due to a global dust storm, but the engineering team is hopeful.
August 22, 2018
Ice confirmed at moon’s poles
It's the 1st definitive evidence of water ice on the moon's surface.
August 21, 2018
