Many mini-Neptunes once thought to be lava worlds may actually have solid surfaces

As telescopes have become more powerful, it's turned out our solar system is not the only game in town: There are millions of ...

Are the cosmic voids truly empty?

If we take out all the matter, neutrinos, dark matter, cosmic rays, and radiation from the deepest parts of the voids, the only thing left is empty space. I know it sounds like a paradox, but the ...