Latest about expert voices
New data reveal US space economy's output is shrinking – an economist explains in 3 charts
Using the broad definition and adjusting for inflation, the relative size of the space economy fell by about one-fifth from 2012 to 2021.
NASA's Psyche mission to a metal world may reveal the mysteries of Earth's interior
Can what we learn about the metal asteroid Psyche with NASA's upcoming mission of the same name be extrapolated to solve some of the mysteries about the Earth's core?
Researchers dig deep underground in hopes of finally observing dark matter
Physicists like me don't fully understand what makes up "dark matter." Deep beneath South Dakota, we're trying to change that.
First contact with aliens could end in colonization and genocide if we don't learn from history
How humanity responds to the first contact with intelligent alien life could determine the very fate of our species. Here's what we can learn from history.
The largest known asteroid impact structure on Earth is buried in southeast Australia, new evidence suggests
Search for Life In a new study, scientists reveal new evidence for the largest asteroid impact structure on Earth buried Australia in southern New South Wales.
Curious Kids: What comes after space?
To find out what is beyond space, a good place to start would be to figure out where space – our universe – ends. The problem is we don't know where space ends, or even if it ends at all.
Over 100 space rocks collected by meteorite hunter Geoffrey Notkin are up for auction today
Over 100 different meteorite fragments collected by famed space rock hunter Geoffrey Notkin are currently up for bidding from Heritage Auctions.
Return to the moon: The race we have to win (again)
The race is on. We are in a Sputnik moment — a sudden and important recognition that we are about to lose the heavens if we do not act with clarity and unity.
If humans went extinct, what would the Earth look like one year later?
After a year without people, the sky would be bluer, the air clearer. The wind and the rain would scrub clean the surface of the Earth; all the smog and dust that humans make would be gone.
Space Blocs: The future of international cooperation in space is splitting along lines of power on Earth
Even during times of conflict on the ground, space has historically been an arena of collaboration among nations. But trends in the past decade suggest the nature of cooperation in space is shifting.
