With ~400 billion stars in the Milky Way and 6-20 trillion galaxies overall, that makes for a lot of stars. But not as many as you’d think.
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From exoplanets to supermassive black holes to the first stars and galaxies, Webb will show us the Universe as we’ve never seen it before.
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The odds are slim, but the consequences would be literally world-ending. There really is a chance of a black hole devouring the Earth.
A Fermilab study confirms decades-old measurements regarding the size and structure of protons.
But the upcoming James Webb Space Telescope compels us to add, “so far.” Beginning with its 1990 launch, NASA’s Hubble Space Telescope revolutionized our conception of the Universe. This photo of […]
Two fundamentally different ways of measuring the expanding Universe disagree. What’s the root cause of this Hubble tension?
The far infrared reveals both the coldest and hottest gas in the Universe, and can teach us what no other wavelength range can.
Comet A3, also known as Comet Tsuchinshan-ATLAS, has sprung to life since 2024’s last equinox. Here’s how to catch the show for yourself.
Your life’s memories could, in principle, be stored in the universe’s structure.
Hubble, our greatest space-based observatory today, is just the beginning. The Hubble Space Telescope has been astronomy’s most revolutionary observatory in history. The stars and galaxies we see today didn’t […]
There really might be extraterrestrials out there, attempting to make contact. Here’s how science, not fiction, is attempting to find them.
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.
Hubble’s still going strong after 31+ years. James Webb will never make it that long. Every decision that’s made — in both astronomy and in life — comes with its own set of pros and […]
Some astrobiologists believe life is rare, while others believe it is common in the Universe. How can we find out which view is correct?
Finding out we’re not alone in the Universe would fundamentally change everything. Here’s how we could do it.
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.
If you want to find life in the Universe, this is how you do it. When it comes to uncovering the ultimate truths about reality, we can only reap what we […]
The photometric filters for the Vera Rubin Observatory are complete and showcase why they are indispensable for astronomy.
Much like computing technology, the Great Red Spot has been getting smaller and faster over the last few years.
If life is common in the Universe, then where is everybody? Known as the Fermi Paradox, a new project may help solve the riddle.
JWST just found its first transiting exoplanet, and it’s 99% the size of Earth. But with no atmosphere seen, perhaps air is truly rare.
Without modularization, many epic projects simply would be impossible.
Can two planets stably share the same orbit? Conventional wisdom says no, but a look at Saturn’s moons might tell a different story.
Red dwarf stars were supposed to be inhospitable. But TOI-700, now with at least two potentially habitable worlds, is quite the exception.
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.
If our nearest star has an Earth-like planet, here’s how we’ll see it. As seen from up close, the signs of not only life, but our intelligent, technologically advanced human civilization […]
The image you’re seeing isn’t a hole in the Universe, and the cosmic voids that do exist aren’t hole-like at all.
These missions will put us one step closer to the ultimate goal: crewed trips to Mars.