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Spin, spin, spin — fire! The startup’s radical system could make satellite launches cheaper and cleaner.
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.
Single objects rarely change the course of an entire scientific field. Distant object GNz7q, a galaxy-quasar hybrid, might do exactly that.
We should not expect aliens to look anything like us. Creatures that resemble octopuses or birds or even robots are legitimate possibilities.
We've fooled ourselves before with galaxies that look just like this one. The evidence we have simply isn't strong enough.
The idea of "absolute time" was our default for millennia. But time is relative, as gravity and motion both cause time to dilate.
To study the origin of the Universe, we could build a constellation of six expensive spacecraft — or we could just use the Moon.
For some reason, when we talk about the age of stars, galaxies, and the Universe, we use "years" to measure time. Can we do better?
From life on Earth to the planet itself, there are four ways our planet will actually experience "the end," no matter how we define it.
Even a tiny sliver of the Universe can reveal the cosmic story of what's out there and how it came to be the way it is today.
Spotty connectivity isn’t going to jeopardize Ukraine’s drone attacks.
In 1990, we only knew of the planets in our own Solar System. Today, the exoplanet count is more than 5000. Here's what we've learned.
Knowing that technology would advance in the future, NASA put some moon rock samples into storage without opening them. Now, they have.
The laws of physics state that you can't create or destroy matter without also creating or destroying an equal amount of antimatter. So how are we here?
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.
If dark matter exists in a large halo in our galaxy, made up of particles, then it's passing through us constantly. But how much?
There's a limit to how large planets can be, and it's only about double the radius of Jupiter. At least, so far.
The Kardashev scale ranks civilizations from Type 1 to Type 3 based on energy harvesting.
A study proposes that an ancient trading network, called the Hopewell tradition, may have been wiped out by what is known as a cosmic airburst.
With 1550 distinct type Ia supernovae measured across ~10 billion years of cosmic time, the Pantheon+ data set reveals our Universe.
In general, 5G is not a threat to human health or activities, but there are some legitimate questions about interference with airplane instruments.
Please stop calling our Sun an "average star." It is philosophically dubious and astronomically incorrect.
There are an estimated two trillion galaxies within the observable Universe. Most are already unreachable, and the situation only gets worse.
Hubble's deepest views of space revealed fewer than 10% of the Universe's galaxies. James Webb will change that forever.
Coupled with 3D printing, biomining the Moon or Mars with microbes could sustain human colonies without constant re-supply from Earth.
The Solar System isn't a vortex, but rather the sum of all our great cosmic motions. Here's how we move through space.
Some stars burn through their fuel as expected, and die of natural causes. But others, instead, get murdered. Here's their story.
New technology is helping physicists move forward in the search for the Theory of Everything.
From before the Big Bang to the present day, the Universe goes through many eras. Dark energy heralds the final one.
One day, we could fly across the U.S. in half an hour. A state-of-the-art hypersonic flight testing facility at UTSA could help make that dream a reality.