This technological feat changes our cosmic history.
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There are billions of potentially inhabited planets in the Milky Way alone. Here’s how NASA will at last discover and measure them.
In 2006, Pluto was demoted in a very controversial decision. Unless you ignore nearly all of planetary science, it’ll never be one again.
Pluto failed to meet the definition of a planet, but some astronomers think there might be a legitimate Planet 9 out there.
What we’ve seen isn’t necessarily what we get, but the most common world doesn’t look like ours. There’s a very common myth out there in astronomy: the idea that the Sun […]
The false assumption the Multiverse relies on is that something which exists requires an explanation.
And what can it teach us about our Solar System’s earliest days? In many ways, astronomy is unique among the sciences. In every other field, you have the ability to design […]
Some of the most extreme weather in the Solar System just got stranger.
65 million years ago, an asteroid strike caused the 5th great mass extinction. Could we save Earth, today, from a similar event?
The Universe is an amazing place. Under the incredible, infrared gaze of JWST, it’s coming into focus better than ever before.
Whether they’re gas giants or rocky planets makes all the difference for life. Over the past 30 years, we went from not knowing if there were planets like ours around other […]
Scientists find routes using arches of chaos that can lead to much faster space travel.
The stars, planets, and many moons are extremely round. Why don’t they take other shapes?
NASA will use energy from Earth’s gravity to launch the Lucy spacecraft in October of this year.
Think there are habitable super-Earths out there? Think again. Here in our Solar System, we have two very distinct types of planets: small, terrestrial, rocky worlds, with thin (or no) atmospheres […]
Life finds a way — particularly if it has a moon.
The shift from steam to electricity was inevitable — but some foresaw it earlier than others.
Our Solar System’s outer reaches, and what’s in them, was predicted long before the first Oort Cloud object was ever discovered.
Although many of Einstein’s papers revolutionized physics, there’s one Einsteinian advance, generally, that towers over all the rest.
Life became a possibility in the Universe as soon as the raw ingredients were present. But living, inhabited worlds required a bit more.
Just say no to artist’s illustrations. This is what the Universe actually looks like. The Universe we observe often surpasses our greatest imaginings. This 20-year time-lapse of stars near the center […]
How did the troughs form?
It doesn’t propagate at infinite speeds, and that’s a problem for Newton. When you look at the Sun, the light you’re seeing isn’t the light that’s being emitted right now. Instead, […]
Tiny fluctuations in old Kepler data reveals four runaway planets that are reminiscent of Earth.
Massive objects like black holes, stars, and rogue planets routinely pass near our Solar System. An ensuing comet storm could destroy us.
Dark matter hasn’t been directly detected, but some form of invisible matter is clearly gravitating. Could the graviton hold the answer?
Life arose on Earth very early on. After a few billion years, here we are: intelligent and technologically advanced. Where’s everyone else?
Scientists find an exoplanet whose strange behavior may lead to the Solar’s System hidden ninth planet.
Each year in mid-August, Earth plows through the debris stream of an enormous comet, creating the Perseids. 2023’s show will be magnificent!
The Copernican principle states that Earth is an ordinary planet, but that does not mean that life is ordinary in the universe.