Avi LoebA Free Ride Away from EarthIf you are fed up, like many of us, with the depressing news around the world and want to escape from Earth, preferably faster than light…4 min read·1 day ago--10
Avi LoebOn Negative Mass, Time Travel and AliensIn 1957, the astrophysicist Herman Bondi wrote a paper in which he considered the possible existence of a negative mass in Albert…5 min read·Apr 27, 2024--22
Ethan SiegelinStarts With A Bang!No matter how you interpret the data, dark energy remainsDark energy is one of the biggest mysteries in all the Universe. Is there any way to avoid “having to live with it?”·11 min read·1 day ago--11--11
Ethan SiegelinStarts With A Bang!How the cosmic microwave background proves the Big BangIn the 20th century, many options abounded as to our cosmic origins. Today, only the Big Bang survives, thanks to this critical evidence.·11 min read·4 days ago--8--8
Ethan SiegelinStarts With A Bang!The better way to measure cosmic timeFor some reason, when we talk about the age of stars, galaxies, and the Universe, we use “years” to measure time. Can we do better?·12 min read·5 days ago--5--5
Avi LoebA Free Ride Away from EarthIf you are fed up, like many of us, with the depressing news around the world and want to escape from Earth, preferably faster than light…4 min read·1 day ago--10
Avi LoebOn Negative Mass, Time Travel and AliensIn 1957, the astrophysicist Herman Bondi wrote a paper in which he considered the possible existence of a negative mass in Albert…5 min read·Apr 27, 2024--22
Ethan SiegelinStarts With A Bang!No matter how you interpret the data, dark energy remainsDark energy is one of the biggest mysteries in all the Universe. Is there any way to avoid “having to live with it?”·11 min read·1 day ago--11
Ethan SiegelinStarts With A Bang!How the cosmic microwave background proves the Big BangIn the 20th century, many options abounded as to our cosmic origins. Today, only the Big Bang survives, thanks to this critical evidence.·11 min read·4 days ago--8
Ethan SiegelinStarts With A Bang!The better way to measure cosmic timeFor some reason, when we talk about the age of stars, galaxies, and the Universe, we use “years” to measure time. Can we do better?·12 min read·5 days ago--5
Avi LoebThree Paradigm Shifts About Rocks: Ridicules Which Turned Into Cherished Scientific TruthsJohn Lennon’s song `Imagine’ ends with the words: “I hope someday you’ll join us/And the world will live as one”. In fact, science tells us…8 min read·1 day ago--1
Avi LoebDid an Interstellar Gardener Seed Earth with Aerobic Bacteria?Over the past decade, astronomers discovered near-Earth the first large objects from outside the Solar system. These so-called interstellar…5 min read·4 days ago--17
Avi LoebDo Magnetic Monopoles Exist?The elegant equations of classical electromagnetism written by James Clark Maxwell in 1861 display a remarkable symmetry between electric…4 min read·Apr 30, 2024--7