Powerful Telescope Confirms There’s an Earth-Sized World Orbiting Proxima Centauri
There is an Earth-sized planet only four light years from Earth. Whether it has life is yet to be known.
Maybe a Fleet of Tiny Spacecraft Could Help Detect a Primordial Black Hole Planet 9
There are eight classical planets in our solar system, from speedy Mercury to distant Neptune. There are also numerous dwarf planets, such as Pluto and Ceres. While we continue to find more dwarf planets, there are some hints that another large planet could lurk far beyond Neptune. This Planet Nine is thought to be a …
Hundreds of New Gravitational Lenses Discovered to Help Study the Distant Universe
General relativity tells us that everything, even light, is affected by the mass of an object. When a beam of light passes near a large mass, its path is deflected. This shift in the direction of light is known as gravitational lensing, and it was one of the first confirmed effects of Einstein’s theory.
The Tunguska Explosion Could Have Been Caused By An Asteroid That Still Orbits The Sun
On a cool Summer morning in 1908, a fireball appeared over Northern Siberia. Eyewitnesses described a column of blue light that moved across the sky, followed by a tremendous explosion. The explosion leveled trees across more than 2,000 square kilometers. The explosion is consistent with a large meteor strike, but to this day no evidence …
High Energy Neutrinos Are Coming From Supermassive Black Holes
Some neutrinos are so energetic we don’t know how they are produced. But a clue lies in the heart of distant quasars.
One Step Closer to Interstellar Travel. A Successful Microgravity Test of a Graphene Light Sail
If we want to travel to the stars, we’re going to have to be creative. The answer might be light sails made of sheets of graphene.
A Fast Radio Burst Has Been Detected From Inside The Milky Way
Fast radio bursts last for such a short time that it is difficult to track down the source. Now astronomers have found one in our own back yard.
The Sun is less active magnetically than other stars
While the Sun can be active, it is often quite a calm star. We now know it is unusually calm when compared to other stars.
Could The Physical Constants Change? Possibly, But Probably Not
The laws of physics are rooted in universal physical constants. But what if these constants change over time?
How Do You Weigh The Universe?
If we can find the weight of everything in the universe, we can better understand how the universe came to be.