Heard of Mini-Neptunes and gas-Dwarfs? Here's a new one: sub-Earths
A new study suggests that planets smaller than Earth form much later than large planets, which could point to a rare Earth.
An Astronomer Checked to see if There’s a Secret Message in the Cosmic Microwave Background Radiation
One way to look for a message in the cosmic microwave background is to convert thermal fluctuations into a binary string. So what does it say?
Australian Radio Telescopes Just Completed a map of the Universe
CSIRO has made a detailed radio survey of the southern hemisphere, and discovered a million new galaxies.
Neutrinos Have Played a Huge Role in the Evolution of the Universe
Neutrinos are a form of dark matter, and they play a role in the evolution of the universe.
A new measurement puts the Sun 2,000 light-years closer to the center of the Milky Way
Ultra-precise measurements of stars in our galaxy put us closer to galactic center than we thought.
Polarized light from the cosmic background hints at new physics
Distant light from the big bang is twisted as it travels to us. This could mean dark matter is more exotic than we thought.
Neutrinos prove the Sun is doing a second kind of fusion in its core
Astronomers have detected a fusion cycle in our Sun that powers massive stars and creates the elements central to life in the cosmos.
Solar astronomers can now predict future sunspots. There should be a big one in a couple of days
Predicting the appearance of a sunspot is like predicting a tornado. But astronomers are starting to do it.
Gravitational lenses could be the key to measuring the expansion rate of the Universe
Nailing down cosmic expansion could depend on distant quasars, and the time it takes their light to reach us when gravitationally lensed.
Some of the Milky Way’s oldest stars aren’t where they’re expected to be
Some of the oldest stars in our galaxy have orbits similar to the Sun, and we don’t know why