Galaxies, Robotic Spaceflight The Chandra Observatory identifies impact of cosmic chaos on star birth
Science As Earth wobbles due to precession, do the seasons change in regard to the months (i.e., 13,000 years from now, will June be winter for the Northern Hemisphere and December summer)?
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?
Science Nuclear fusion of hydrogen into helium powers stars, but fusion requires a lot of energy. Where does this energy come from?
