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Sun-like stars live for around 10 billion years, but our Universe is only 13.8 billion years old. So what's the maximum lifetime for a star?

NASA is creating a planet habitability index, and Earth may not be at the top. With our current data, ranking habitability is guesswork.

Nearly 200 orbital launches are scheduled for 2022.

Even at its faintest, Venus always outshines every other star and planet that's visible from Earth, and then some!

Back in 1990, we hadn't discovered a single planet outside of our Solar System. Here are 10 facts that would've surprised every astronomer.

The story of how Jupiter, Saturn, Uranus and Neptune were made isn't a universal one. Some gas giants were built different.

Exoplanet LP 791-18d is likely to have an atmosphere and liquid water.

Sooner or later, Earth is going to be hit by a large enough space object to cause significant damage to humanity. Stopping them isn't easy.

If there are human-sized creatures walking around on other planets, would we be able to view them directly?

In the night sky for March of 2022, only stars and the Moon, not planets, will greet you. The real show, however, arrives just before dawn.

The first set of James Webb's images blew us all away. In just 2 mere months, it's seen highlights that no one could have predicted.

The recently discovered Oort cloud comet, Bernardinelli–Bernstein, has the largest known nucleus: 119 km. Here's what it could do to Earth.

In terms of the planets we've discovered, super-Earths are by far the most common. What does that mean for the Universe?

Now that it's fully commissioned, the James Webb Space Telescope begins its exploration of the Universe. Here are its first science images!

The odds are slim, but the consequences would be literally world-ending. There really is a chance of a black hole devouring the Earth.

Much like computing technology, the Great Red Spot has been getting smaller and faster over the last few years.

Spaceguard shows that we can manage risks to the extinction of humanity — if only we put our mind to it.

If you want to understand what the Universe is, how it began, evolved, and will eventually end, astrophysics is the only way to go.

Infrared, visible, and ultraviolet combine to show us Jupiter’s features as never before. The largest planet in our Solar System, Jupiter, is our own ‘failed star.’ The best evidence-based classification scheme […]

With a new telescope on the horizon, we reflect on the best pictures of space that came before.

We've only seen Uranus up close once: from Voyager 2, back in 1986. The next time we do it, its features will look entirely different.

The Schumann resonances are the background hum of the entire planet. But they don't affect humans in any way.

At 35 light-years away, it’s also the 2nd coolest, 2nd widest planet ever found. Despite discovering more than 4000 exoplanets, most remain obscure. Although more than 4,000 confirmed exoplanets are known, […]

The James Webb Space Telescope has chosen 5 targets for its first science release. Here's what we know on the eve of JWST's big reveal!

Multiple lines of evidence — physical, chemical, and biological — must converge for scientists to conclude that alien life has been found.

Water is vital for life. Luckily for spacefaring humans, the solar system is full of it.

Do you think you know the Solar System? Here's a fact about each planet that might surprise you when you see it!

Dr. Tyson explains where we might find aliens, why "dark matter" is a misleading term, and why you can blame physics for your favorite team's loss.

The largest moon in our Solar System, often overlooked, is a water-rich world. Does that mean life? Here on Earth, life took hold very early on in our planet’s history, and […]

Many planets will eventually be devoured by their parent star. For the first time, we caught a star in the act, eating its innermost planet!