Gravitational waves may be responsible for dark matter in the universe
Dark matter is thought to exist everywhere, wrapping around galaxies and helping to shape the largest things in…
Light can travel for billions of years yet experience no time
A photon emitted from a star a billion light-years away arrives at a telescope having experienced no time…
Groundbreaking new theory rewrites quantum view of the Big Bang
A Gravity Theory That Could Rewrite the Universe’s First Moments The first fraction of a second after the…
Four-legged robots look to speed up Mars and Moon exploration
The slowest part of a Mars mission is often not the driving, it is the waiting. A rover…
America’s nuclear spacecraft is heading to Mars, and it’s bringing helicopters
For decades, nuclear propulsion has been a fixture of aerospace engineering proposals and government studies, always promising, never…
The physics of no return: What actually happens if you get pulled into a black hole
In 1916, only a year after Albert Einstein had published his general theory of relativity, Karl Schwarzschild used…
Getting pregnant in space isn’t that easy, study finds
Getting to Mars is difficult. Conceiving a child there could be even tougher than expected. A recent study…
Lightning bolts on Jupiter are up to 100 times stronger than Earth’s
On Jupiter, a storm doesn’t just brew, it can simmer for centuries. The planet’s atmosphere is a perpetual…
Distance in space is an illusion
Andromeda sounds far away because 2.5 million light-years sounds far away. It lands with authority. It feels exact.…
Darkness can move faster than light without breaking relativity
A dark point inside a wave of light sounds like a contradiction. It is also something researchers say…
Expanding catalog of black hole collisions is rewriting the history of the universe
Between May 2023 and January 2024, a global network of gravitational-wave detectors picked up 128 new cosmic signals,…
Scientists are rethinking how young galaxies formed their magnetic fields
Magnetic fields that stretch across thousands of light-years should take a very long time to organize. Standard dynamo…