astrophysics
4 posts in this topic
-
The Most Energetic Neutrino Ever Detected — From Two Miles Beneath the Mediterranean Sea
In February 2025, the KM3NeT collaboration announced something extraordinary: a neutrino with roughly 220 PeV of energy, detected in the deep Mediterranean — the most energetic cosmic neutrino ever observed, and a signal that may point to entirely new astrophysics.
-
The Seven-Hour Explosion: A Gamma-Ray Burst That Defies Everything We Know
On July 2, 2025, astronomers detected GRB 250702B — the longest gamma-ray burst ever recorded, blazing for nearly seven hours from a galaxy eight billion light-years away. It doesn't fit any known model. That's exactly what makes it wonderful.
-
The Fastest Thing We've Ever Built Just Flew Through a Star's Atmosphere
On Christmas Eve 2024, NASA's Parker Solar Probe completed the closest-ever approach to the Sun — skimming through the corona at 430,000 mph. Here's what six years of record-breaking passes have revealed about the biggest unsolved mystery in solar physics.
-
The Universe Has a Twist: DESI's 14 Million Galaxies Challenge the Cosmological Constant
New data from the Dark Energy Spectroscopic Instrument reveals that dark energy may be changing over time — a 3.1 to 4.2 sigma crack in cosmology's most fundamental assumption.