Two astronauts stuck in space for 9 months have returned to Earth
NASA’s Artemis II astronauts are on their way to the moon, testing the Orion spacecraft for future lunar landings and a planned moon base.
I have encountered this when referencing subsets and vector subspaces. For example, T ⊊ span(S) should mean that T is smaller than span(S)--at least from what I've gathered. Is ⊊ a sort of ≤ or <...
I have started seeing the "∈" symbol in math. What exactly does it mean? I have tried googling it but google takes the symbol out of the search.
In summary: The interplay of meaning and axiomatic machine mathematics, captured by the difference between $\models$ and $\vdash$, is a subtle and interesting thing.
The Space topic features the latest news in astronomy, cosmology, planetary science, exoplanets, astrobiology and more.
Astronauts Suni Williams and Butch Wilmore’s extended stay in the International Space Station will add to what we know about how space affects health.
Humankind accomplished new feats in space this year, including scooping up some of the moon’s farside and launching a probe to Jupiter’s moon Europa.
Hubble is still going strong 35 years after it was launched into space. Celebrate its anniversary with some out-of-this-world images.
These space stories made us look up in 2025 Sticking a moon landing, hearing the crackle of lightning on Mars and more
These space stories made us look up in 2025 - Science News
The future of U.S. space exploration and NASA-funded science is up in the air as President-elect Donald Trump prepares to return to office. “There’s just so many question marks,” says ...