With JWST, Chandra, and gravitational lensing combined, evidence has emerged for the earliest black hole ever. And wow, is it a surprise!
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From the tablets of the Babylonians to the telescopes of modern science, humans have always looked to the skies for fundamental answers.
The standard model of cosmology has a big new problem: Some galaxies seem to be too old.
Most potentially hazardous asteroids remain unidentified. NEO surveyor could change that, but only if it’s funded, and soon.
JWST’s revolutionary views arrive in high-resolution at infrared wavelengths. Without NASA’s Spitzer first, it wouldn’t have been possible.
In the expanding Universe, different ways of measuring its rate give incompatible answers. Nobel Laureate Adam Riess explains what it means.
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!
To study the origin of the Universe, we could build a constellation of six expensive spacecraft — or we could just use the Moon.
Thanks to time-traveling telescopes, we can see more about the Big Bang.
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With a new telescope on the horizon, we reflect on the best pictures of space that came before.
From the present day all the way to less than 400 million years after the Big Bang, we’re seeing how the Universe grew up like never before.
In our Solar System, even the two brightest planets frequently align in our skies. But only rarely is it spectacularly visible from Earth.
Should we be searching for life on other planets, or technology?
At 1,600 light years away, the black hole is practically in our cosmic backyard.
With its very first deep-field view of the Universe now released, the James Webb Space Telescope has shown us our cosmos as never before.
From inside our Solar System, zodiacal light prevents us from seeing true darkness. From billions of miles away, New Horizons finally can.
The structure of our Solar System has been known for centuries. When we finally started finding exoplanets, they surprised everyone.
The James Webb Space Telescope could help scientists learn about the cosmic dark ages and how they ended.
Figuring out the answer involved a prism, a pail of water, and a 50 year effort by the most famous father-son astronomer duo ever.
This oddball system of three stars might be our best chance at finding nearby life in the Universe.
Ever since the Big Bang, cataclysmic events have released enormous amounts of energy. Here’s the greatest one ever witnessed.
The light from Earendel took 12.9 billion years to reach Hubble. The star is millions of times brighter than our Sun and 50 times as massive.
The discovery calls into question the few things scientists know about these powerful astronomical phenomena.
“If we find just one other example of biology out there, then life is not an accident.”
“I hope we take a mindset where we are willing to look for weird life in weird places.”
For 550 million years, neutral atoms blocked the light made in stars from traveling freely through the Universe. Here’s how it then changed.
Space weather poses a tremendous threat to all satellites, knocking all computer systems offline. Is that a recipe for Kessler syndrome?
The Hubble Space Telescope, 32 years after its launch, broke the all-time record for most distant star. It won’t do better.
Earth is the Solar System’s only known inhabited planet. Could Venus, if its phosphine signal is real, be our second world with life?
The Big Bang theory is not threatened, but astrophysicists have some explaining to do.