Astrophysics

Science

In my astronomy studies decades ago, we used the “Roche limit” to determine when a smaller body is too close to survive a larger object’s gravitational force. Do astronomers still use that term?

Planets

What is the “Roche limit” and how is it defined?

Exotic Objects

Fermi satellite finds hints of starquakes in magnetar “storm”

Exotic Objects, Stars

NuSTAR telescope discovers shockingly bright dead star

Astronomy for beginners, Exotic Objects, Science

Astronomy 101: Cosmic Rays

Science

Nuclear fusion of hydrogen into helium powers stars, but fusion requires a lot of energy. Where does this energy come from?

Astronomy for beginners

Society support

Alien Life, Science

New molecule found in space connotes life origins

Cosmology

Data from Planck measure contaminants in the BICEP2 observation

Cosmology, Science, Stars

Finding hints of gravitational waves in the stars

Exotic Objects, Stars

Pulse of a dead star powers intense gamma rays

Science

Latest measurements from the AMS experiment unveil new territories in the flux of cosmic rays