‘Project Hail Mary’s’ Relativity Problem Is More Complicated Than You Think
When Ryland Grace reaches Tau Ceti in Project Hail Mary, about four years have passed for his human…
Big NASA News Thing On Tuesday
Keith’s note: according to this press release: “NASA will host a public event at 9 a.m. EDT on…
Astronomers spot wobbling jets on rare interstellar comet 3I/ATLAS |
Interstellar objects usually pass through quietly, noticed only by a small group of astronomers before fading back into…
Long lost Moon-forming planet formed in the inner Solar System, new analysis shows
By Roselyne Min with AP Published on 23/11/2025 – 8:01 GMT+1 A long-lost planet that helped create the Moon may have…
Comet newly discovered from AZ’s Mt. Lemmon now appearing
A newly discovered comet could be visible to the naked eye this week, and its name should give…
Scientists Spot Two Black Holes Caught in a Deadly Orbital Dance for the First Time
When two black holes meet, they are drawn to one another by way of their enormous gravity, initiating…
Future SpaceX Starship flights could cross Southern Arizona
Elon Musk’s Starship could one day streak through the skies above parts of Southern Arizona — and cause…
The observable universe is just 5% of reality, 95% remains invisible!
Ordinary matter, also called baryonic matter, consists of protons, neutrons, and electrons. This is the material that emits…
Is the universe infinite? Scientists reveal how vast it really is..
One of the strongest indicators of this limit is the cosmic microwave background radiation, faint afterglow from the…
Observable universe is 93 billion light years wide but what’s beyond it? Here’s what we can’t see…
One of the most important pieces of evidence for this limit is the cosmic microwave background radiation, faint…