Heavy Water with Heavy Implications
Astronomers have observed the abundance of heavy water (D2O) in the V883 Ori disc, providing a crucial insight into the history of water – with some implications for Earth’s water and maybe more…
How One Pulsar Can Look Like Three: Cosmic-Ray Mirage Halos in the Gamma-Ray Sky
Cosmic rays don’t always reveal their origins honestly—magnetic fields can bend their paths and create “mirage halos” that look like real gamma-ray sources. New simulations show how a single pulsar can masquerade as three, reshaping how we interpret TeV observations.
A Planetary Hit-and-Run?
Was Venus involved in a catastrophic hit-and-run? Read this astrobite to find out!
Does the Hubble tension arise from heterogeneity in Type-Ia supernovae?
How standardizable of a candle are Type-1a supernovae? Learn how differing initial conditions causing a white dwarf to exceed the Chandrasekhar limit and explode might reconcile independent measurements of the Universe’s expansion rate and history.
It’s not you, it’s me. I just need several parsec of space.
What does a stellar breakup look like? So dramatic that the stars can’t wait to get away from each other! Today’s authors use physics to search for the one who got away.
Testing cosmology with galaxy motions: what we can learn from measurements of the bulk flow
In today’s Astrobite, we discuss how the motions of galaxies may indicate the presence of large structures in the nearby Universe and put the Lambda-CDM model to the test.