Brown dwarf discovered with a radio telescope for the first time
A brown dwarf has been detected by a radio telescope, which opens a new way to discover them.
One Mars Trojan asteroid has the same chemical signature as the Earth’s moon
Mars has a trojan asteroid that could be a captured rock from the surface of the Moon.
New Receiver Will Boost Interplanetary Communication
As we explore the solar system, we’ll need an interplanetary communication network that can keep up. A new receiver might be up for the job.
We use the Transit Method to Find other Planets. Which Extraterrestrial Civilizations Could use the Transit Method to Find Earth?
We have found more than 4,000 planets orbiting other stars. Life on distant worlds could find us in the same way.
We actually don’t know how fast the Milky Way’s supermassive black hole is spinning but there might be a way to find out
The stars at the center of our galaxy could tell us just how fast our closest supermassive black hole is spinning.
Astronomers Watch a Star Get Spaghettified by a Black Hole
When a black hole consumes a star, it does so by turning it into spaghetti first. Astronomers have seen it happen.
Black Holes Make Complex Gravitational-Wave Chirps as They Merge
When black holes collide, they emit chirps of gravitational waves even after they have merged.
Gravitational-Wave Lensing is Possible, but it’s Going to be Incredibly Difficult to Detect
Because gravitational waves travel at the speed of light, they can be lensed just as light waves are. But observing this effect will be difficult.
Einstein. Right again
Astronomers can now test the limit of relativity and whether new physics lies beyond Einstein’s model.
Time Travel, Without the Pesky Paradoxes
So you’ve built a time machine. What prevents you from creating a paradox that dooms us all?