The Vera C. Rubin Observatory has started releasing its first discoveries: including supernovae, variable stars and asteroids ...

There is a silence in the night sky that has bothered me for as long as I can remember. ” Richard Feynman’s reflection lingers because it feels personal.

A team of scientists says it's possible to use tiny ripples in space and time, or gravitational waves, to measure the rate at ...

Physicists are scrambling to understand why dark energy is weakening. In a surprising twist, we must now reconsider the ...

Astronomers have long known the universe is expanding—but exactly how fast remains one of the biggest mysteries in cosmology. Different techniques for measuring the Hubble constant stubbornly disagree ...

The largest stars in the universe live the life of a rock star - they are born brilliant, live fast and die young. If that is ...

The universe is 13.8 billion years old — but its observable radius is about 46 billion light years. That’s because space itself expanded at more than 10 sextillion times the speed of light during ...

All the “normal” matter, like the stars, gas, dust, and people, is called baryonic matter, and it’s basically the tiny visible fraction of a universe that’s mostly invisible and still not fully ...

Every now and then, I fall down a late-night rabbit hole reading space facts, and the 30 on this list are the ones that truly messed with my brain. Fair warning: you might need a minute to recover ...

This video explains what scientists mean by the observable universe, how far it extends, and why there are limits to what we can see from Earth. Bacon signals Trump’s new tariff order will be defeated ...

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