Astronomy

Astronomy

Loneliest galaxy MCG+01–02–015
With no other galaxies in its vicinity for ~100 million light-years in all directions, it's as isolated and lonely as a galaxy can be.
Fomalhaut debris system ALMA Keck JWST
A surprising JWST discovery around Fomalhaut has a different, superior explanation: not a great dust cloud, but a mere background object.
epsilon eridani comet storm
Massive objects like black holes, stars, and rogue planets routinely pass near our Solar System. An ensuing comet storm could destroy us.
sun photographed from space
Some say that the Sun is a green-yellow color, but our human eyes see it as white, or yellow-to-red during sunset. What color is it really?
a bright star surrounded by stars in the sky.
Archaeologists can learn how societies lived by studying what they left behind when they died. Astronomers are doing much the same thing.
Betelgeuse visualization
A new, unexpected brightening, just 3 years after a massive dimming event, has astronomers watching Betelgeuse. Is a supernova imminent?
stellar remnants black holes planet
The odds are slim, but the consequences would be literally world-ending. There really is a chance of a black hole devouring the Earth.
life beyond earth
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.
composite JWST ALMA HST Fomalhaut
The nearby, bright star Fomalhaut had the first optically imaged planetary candidate. Using JWST's eyes, astronomers found so much more.
four exoplanets super-earth mini-neptune
They're the most common type of exoplanet known today, and many astronomers have called them "super-habitable." None of that is true.
perseverance ingenuity mars
Mars, the red planet, was a world we knew almost nothing about until our first spacecraft visited it. In just ~50 years, how far we've come!
universe temperature
Before there were planets, stars, and galaxies, before even neutral atoms or stable protons, there was the Big Bang. How did we prove it?
black hole
Einstein's relativity overthrew the notion of absolute space and time, replacing them with a spacetime fabric. But is spacetime truly real?
sun red giant swallow planet
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!
jwst background galaxies
These high-mass, rapidly star-forming galaxies have called modern cosmology into question. But hi-res simulations show no tension at all.
dark energy accelerated expansion
All forms of energy affect the expanding Universe. But if matter and radiation slow the expansion down, how does dark energy speed it up?
JWST most distant galaxy proto-cluster
Finding out how the Universe grew up was the biggest science goal of JWST. This ultra-early proto-galaxy cluster is one amazing discovery.
jwst background galaxies
From quarks and gluons to giant galaxy clusters, everything that exists in our Universe is determined by what is (and isn't) bound together.
a person holding a glass ball in their hand.
The acceptance of our cosmic loneliness and the rarity of our planet is a wakeup call.
John Templeton Foundation
JWST vs Hubble deep field
With infrared capabilities and image sharpness far beyond Hubble's limits, JWST looked at Hubble's deepest field, revealing so much more.
a very large cluster of stars in the sky.
Stars orbiting black holes were observed to move significantly slower than expected. One explanation centers on dark matter.
Uranus 1986 Voyager 2 2023 JWST
Voyager 2 flew past Uranus in 1986, finding a bland, featureless world. Now, in 2023, JWST's sights are similar. There's a reason for that.
two colliding white dwarfs trigger a type Ia supernova
When white dwarfs explode, they create a type Ia supernovae. After decades of following the leading theory, here's the complete overhaul!
map of earth eclipse path April 8 2024
The next solar eclipse to occur over heavily populated areas is on April 8, 2024. For a spectacular show; here's where the best views are!
a very large spiral shaped object in the sky.
Finding this missing piece of water’s path through the universe offers clues to how it came to be on Earth.
a clock that is in the middle of a picture.
If the evolution of the Universe is a movie, what happens when we rewind it all the way backward?
Hubble view of galaxy containing GRB 221009A BOAT
Gamma-ray bursts are among the most energetic cosmic events of all. On October 9, 2022, a remarkable one occurred: the brightest ever seen.
JWST CEERS 1 hour field
Many galaxies really are ultra-distant, but some are just intrinsically red or dusty. Only with spectroscopy can JWST tell which is which.