Ethan SiegelinStarts With A Bang!Astronomy’s secret weapon in the resolution wars: interferometryThe sharpest optical images, for now, come from the Hubble Space Telescope. A ground-based technique can make images over 100 times…13h ago13h ago
Ethan SiegelinStarts With A Bang!The one reason that physicists won’t give up on supersymmetryAlmost 100 years ago, an asymmetric pathology led Dirac to postulate the positron. A similar pathology could lead us to supersymmetry.1d ago51d ago5
Ethan SiegelinStarts With A Bang!7 bizarre facts about the Solar System to stump any scientistFrom the coldest planets to spacecraft that have exited the Solar System, these little-known facts stump even many professional…2d ago42d ago4
Ethan SiegelinStarts With A Bang!Ask Ethan: Is the Universe finite or infinite?The Universe’s history, from cosmic inflation to the Big Bang to the present, is known. But whether it’s infinite or not is still a…5d ago115d ago11
Ethan SiegelinStarts With A Bang!After 13.8 billion years, why hasn’t the Big Bang faded away?Although the Big Bang occurred at an instant in time long ago, we still see the light from it. Will the evidence ever disappear completely?6d ago66d ago6
Ethan SiegelinStarts With A Bang!The Milky Way’s stars are gradually being ejectedKnown as hypervelocity stars, we originally thought just one would be ejected every 100,000 years. The real number is much greater.Jun 197Jun 197
Ethan SiegelinStarts With A Bang!Astronomers near a complete picture for how planets formNewborn stars are surrounded only by a featureless disk. Debris disks persist for hundreds of millions of years. So when do planets form?Jun 184Jun 184
Ethan SiegelinStarts With A Bang!RIP Apollo 8 astronaut Bill Anders, who rediscovered EarthIn December of 1968, human beings made their first-ever journey to the Moon aboard Apollo 8. Their most important discovery? Planet Earth.Jun 173Jun 173
Ethan SiegelinStarts With A Bang!Starts With A Bang podcast #106 — the troublesome hunt for Planet NineOut beyond Neptune are some fascinating bodies left over from our Solar System’s formation. Could one of them truly be spectacular?Jun 15Jun 15
Ethan SiegelinStarts With A Bang!Ask Ethan: Why do matter and antimatter annihilate?From forming bound states to normal scattering, many possibilities abound for matter-antimatter interactions. So why do they annihilate?Jun 147Jun 147