Image credit: Stefan Kühn Before we go, I have a new mystery for you. Researchers, with permission, took a small sample from the altar stone at Stonehenge and examined its composition and structure in a new level of detail. This information made it possible to determine the stone is 1000-2000 million years old, and chemically similar to rocks in the Orcadian Basin of Scotland. This research was a bit of a surprise to everyone because it had been assumed that this stone, like others, came from Whales. Stonehenge was built about 5000 years ago in Southern England. With one exception, it...
Colliding neutron stars are the new Standard Candle
Credit: Dana Berry, SWIFT/NASA The most important factor about our Universe that we should be able to measure is its expansion rate. In 1929, Edwin Hubble provided the first observational evidence of an expanding universe when he demonstrated that galaxies that are...
Extra Light from Dark Matter in Pulsars… maybe?
credit: NASA/CXC/ASU/J. Hester et al., HST/ASU/J. Hester et al. We’ve said it before and we’ll say it again: the universe is an improv artist that likes to say “Yes, and”. I really wouldn’t be surprised if the effects we see are due to both a stuff we’ll collectively...
It’s a world, it’s a math error, it’s … new physics?
Credit Katherine Brown & Harsh Mathur When I was little, I was totally into all those “In Search of…” shows. There are so many cool mysteries in history waiting to be solved, and I love that I’ve gotten to see some of these great mysteries get solved. The giant...
Get Ready for Spooky Season
credit NASA Around our parent collaboration, CosmoQuest, Halloween is, hands-down, the most beloved season of the year. Costumes are worn. Yards are decorated. We are here for all the strangers that knock on our door - the weirdos, the witches, and the oh-so-many...
The State of Climate Change
Extreme Weather. Credit: NOAA As human beings, we have infinite capacity for empathy. We also have the capacity to be blind to what is going on in the world around us. This dichotomy is why some people see the Sarah MacLachlan ASPCA ads and donate, others click to...
Janus: White Dwarf Edition
The results of science are often weirder than anything humans can imagine. As researchers, we dedicate our lives to taking data and knowing that whatever we may want to believe, we have to accept the reality of what our data shows us. And sometimes the data is...
A new kind of star is discovered
An artist’s impression of the ultra-long period magnetar—a rare type of star with extremely strong magnetic fields that can produce powerful bursts of energy. Credit: ICRAR. The more we look at the universe, the more we’ll be able to find rare and wonderful things. In...
Dark “Stars” or galaxies?
JWST initially identified these three objects (JADES-GS-z13-0, JADES-GS-z12-0 and JADES-GS-z11-0) as galaxies in December 2022. Now a team suggests they might be “dark stars,” theoretical objects powered by particles of dark matter annihilating. Credit: NASA/ESA We...
(Big-)Moonless worlds have unstable tilts
Modern-day Mars experiences cyclical changes in climate and, consequently, ice distribution. Unlike Earth, the obliquity (or tilt) of Mars changes substantially on timescales of hundreds of thousands to millions of years. At present day obliquity of about 25-degree...
Perseverance collects a River of Science
Jezero Crater as Seen by ESA's Mars Express Orbiter: This image shows the remains of an ancient delta in Mars' Jezero Crater, which NASA's Perseverance Mars rover will explore for signs of fossilized microbial life. Credit: NASA The remnants of ancient dunes aren’t...