Avi LoebCould UAP Save Us from Ourselves?Today, I hosted two academic professionals, Andrew Simmons from Washington DC and Lourdes German from Cambridge MA, who confessed that they…1h ago1h ago
Avi LoebDown-To-Earth Benefits of AstrophysicsIn my latest class at the Harvard Astronomy department, I noted that what happens in stars was not always beneficial for promoting…1d ago11d ago1
Avi LoebThe Particle Accelerator at the Center of the Milky-WayThere is a particle accelerator at the center of our Milky-Way galaxy which radiates photon energies at least ten times larger than the…2d ago22d ago2
Avi LoebTightening the Upper Limit on the Graviton MassIn Einstein’s General Relativity, gravitational interactions are mediated by a massless particle, the graviton. However, there is a general…4d ago34d ago3
Avi LoebElon Musk: Should Phobos Serve as the Entry Port of SpaceX to Mars?Phobos is the innermost, larger moon of the two satellites of Mars. Phobos orbits Mars every 7 hours, 39 minutes and 12 seconds. With a…Oct 3016Oct 3016
Avi LoebOn Science and ReligionThe sincerest expression of love is the desire to know everything about the subject of that love. I love nature. This is why, as a…Oct 2911Oct 2911
Avi LoebAppreciating the Diversity of Cosmic MessengersHistorically, astronomy started by observing light from sources in the sky. The reason is simple.Oct 273Oct 273
Avi LoebBrian Cox Takes Our Cosmic Status Too SeriouslyIn a new Joe Rogan podcast, the British physicist Brian Cox argued that we hold a great responsibility for prolonging our civilization…Oct 2515Oct 2515
Avi LoebAre Wormholes Real?In 1935, Albert Einstein and His postdoc Nathan Rosen found a hypothical mathematical spacetime structure that bridges between two separate…Oct 2411Oct 2411
Avi LoebPostcard from Interstellar Space: Separating the Wheat from the ChaffThere are hundreds of billions of stars in the Milky-Way galaxy and a substantial fraction of them host a habitable Earth-like planet. Most…Oct 227Oct 227
