Planet

What does the interior of Neptune or Uranus look like? Astrophysics

What does the interior of Neptune or Uranus look like?

Exploring the interior of icy giant planets is not an easy task. Without more advanced technology, we won’t be able to use probes to make measurements on site, so researchers must rely on models. These models are based on what scientists know about the substances that make up these ice giants such as Neptune and Uranus. However, we can’t rule out that these models might contain errors. For example, it was previously assumed that carbon always took the form of diamond under very high pressures. Carbon and hydrogen are among the most abundant elements in the universe and make…
The youngest planets in the Milky Way: triplets discovered around baby star Space

The youngest planets in the Milky Way: triplets discovered around baby star

HD 163296, which is 330 light years from Earth, is not an especially spectacular star. It is approximately twice as heavy as our sun, and belongs to the class of Herbig Ae/Be stars. These are very young stars (HD 163296 is 4 million years old) that are still on their way to the main series. Hydrogen fusion has not yet ignited in its interior. Instead, the radiated energy comes from its contraction. At the end of 2016, the Atacama Large Millimeter/Submillimeter Array (ALMA) discovered a pronounced protoplanetary disk around HD 163296 and by analyzing this disk, two thinner sections were…