Science How can the Sun’s and Earth’s gravities provide a Lagrangian point on the side of Earth opposite the Sun? Don’t their combined gravities equal each other only at locations between the objects?
Exoplanets, Planets Why do aurorae appear strongest within rings centered on Earth’s poles instead of filled-in circles?
Exoplanets, Planets, Solar System What can astronomers tell us about the different colors on the surface of Jupiter’s moon Europa?
Exotic Objects Don’t black holes disobey the conservation of mass because black holes essentially “eat” matter, thus destroying the material?
Exoplanets, Planets, Solar System Is Venus always either a “morning star” or an “evening star” during certain times of the year?
Science In the Large Hadron Collider, two streams of protons travel in opposite directions at near light-speed before they collide with each other. Does this mean that the two particle streams are moving at nearly twice the speed of light relative to each other?
