Apr 14th: Vacuum Energy
Even empty space isn’t empty. It’s filled with the quantum fluctuations of spacetime itself. Which can be measured with famous experiments like the Casimir Effect
Apr 13th: Kacper’s Centaur & Josh’s Two PHAs
Centaurs have long puzzled astronomers since they have traits in common with both asteroids and comets.
Apr 12th: DESI’s Year 3 Results
Today’s lets explore DESI collaboration results based on the first three years of data that indicate dark energy is not a constant force.
Apr 11th: Space is Hard
Let’s take a fast-paced journey through all that’s new in space and astronomy, including new results from Perseverance Rover, Venusian Volcanism, Mars Sample Return (or not), Intuitive Machines’ failure to land upright
Apr 10th: Asteroids & Time Machines. Again.
Cheap Astronomy has another look at the plausibility of mining in space (possible) and time travel (less possible)
Apr 9th: Has NASA been Trumped?
We try to keep it upbeat this month with tales of blackholes, definitions of moons, and solar system science
Apr 8th: What Made the Moon?
Why is the moon so special? Why do we think a giant impact created it? Why didn’t the same thing happen to other planets? I discuss these questions and more in today’s Ask a Spaceman!
Apr 7th: Supernova Early Warning System
If we can accurately detect neutrinos being emitted during supernova, we might be able to get on target before the light show even starts.
Apr 6th: Comet C.2023 V5 (Leonard) & Probing The Cosmic Web
A story about asteroid hunting in the constellation of Aquarius & how objects and structures in the early Universe became nearby clusters of galaxies
Apr 5th: Last Minute Astronomer April 2025
April of 2025 brings us the annual Lyrid meteor shower, all the naked-eye planets, and plenty of lunar close encounters.