Astronomy

Astronomy

science and religion
It might seem like science and faith are at war, but the two have a historical synergy that extends back in time for centuries.
John Templeton Foundation
longest gravitational waves
LIGO can detect the inspirals and mergers of the lowest-mass black holes, but not the biggest ones. Here's how pulsars can help.
oldest trees
1859's Carrington event gave us a preview of how catastrophic the Sun could be for humanity. But it could get even worse than we imagined.
Since at least 600 BC, people have been mesmerized by the concept of the infinite.
The discovery calls into question the few things scientists know about these powerful astronomical phenomena.
extraterrestrial
There are billions of potentially inhabited planets in the Milky Way alone. Here's how NASA will at last discover and measure them.
how many planets
Do you think you know the Solar System? Here's a fact about each planet that might surprise you when you see it!
With two different black hole event horizons now directly imaged, we can see that they are, in fact, rings, not disks. But why?
When stars form, they emit energetic radiation that boils gas away. But it can't stop gravitational collapse from making even newer stars.
jwst
The James Webb Space Telescope (JWST) will study many dangerous cosmic phenomena, knowledge of which may help save humanity.
fastest nova
If you think you know how an astronomical nova works, buckle up. You're in for a ride like you never expected.
phosphine venus life
Earth is the Solar System's only known inhabited planet. Could Venus, if its phosphine signal is real, be our second world with life?
JWST first science
On July 12, 2022, NASA will release the first science images taken with the James Webb Space Telescope. Here's what to hope for.
jwst
The James Webb Space Telescope is about to begin science operations. Here's what astronomers are excited about.
Uranus
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.
life on mars
Researchers have discovered 830-million-year-old microbes living inside a salt rock on Earth. Could the same occur on Mars?
The observable Universe is 92 billion light-years in diameter. These pictures put just how large that is in perspective.
how common is life
Some astrobiologists believe life is rare, while others believe it is common in the Universe. How can we find out which view is correct?
"The pulsar sort of consumes the thing that recycled it, just as the spider eats its mate.”
Voyager 1
In all of human history, only 5 spacecraft have had the right trajectory to exit the Solar System. Will they ever catch Voyager 1?
Credit: CNSA
Data from the Zhurong rover suggests the Red Planet was wet more recently than we thought.
blue sky
The sky is blue. The oceans are blue. While science can explain them both, the reasons for each are entirely different.
The idea of black holes has been around for over 200 years. Today, we're seeing them in previously unimaginable ways.
supermassive black hole
Astronomers in 2017 caught an image of a supermassive black hole in a galaxy far, far away. Doing it in our own galaxy is a huge milestone.
After years of analysis, the Event Horizon Telescope team has finally revealed what the Milky Way's central black hole looks like.
cryovolcanoes
We have long thought that Pluto was completely frozen solid, but the discovery of cryovolcanoes challenges that assumption.
ancient greeks aliens
Speculation about the existence of aliens goes all the way back at least to the Greek philosophers. Their arguments will sound familiar.