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Stingray’s virgin pregnancy may have a delightfully unusual scientific explanation (www.nbcnews.com)

While a virgin birth sounds like a rare event, experts on parthenogenesis said Charlotte has performed a miracle of life far more common than most people understand. Dozens of species — zebra sharks, California condors and Komodo dragons — can reproduce asexually through parthenogenesis....

Satellites are burning up in the upper atmosphere – and we still don’t know what impact this will have on the Earth’s climate (theconversation.com)

The relative “low earth orbit” where satellites monitoring Earth’s ecosystems are found is increasingly congested – Starlink alone has more than 5,000 spacecraft in orbit. Clearing debris is therefore a priority for the space sector. Newly launched spacecraft must also be removed from orbit within 25 years (the US...

Could tardigrades have colonized the moon? (phys.org)

Just over five years ago, on 22 February 2019, an unmanned space probe was placed in orbit around the moon. Named Beresheet and built by SpaceIL and Israel Aerospace Industries, it was intended to be the first private spacecraft to perform a soft landing. Among the probe’s payload were tardigrades, renowed for their ability to...

Microplastics Invade Ancient Rock, And That's a Big Problem For Age Markers (www.sciencealert.com)

Tiny fragments of plastic aren’t only finding their way into animals, remote ice caps, oceans, and even the depths of our bodies. They’re also seeping through layers of rock, making the emergence of plastics in the geological record a poor marker for the dawn of the human age....

Neanderthals' usage of complex adhesives reveals higher cognitive abilities, scientists discover (phys.org)

Neanderthals created stone tools held together by a multi-component adhesive, a team of scientists has discovered. Its findings, which are the earliest evidence of a complex adhesive in Europe, suggest these predecessors to modern humans had a higher level of cognition and cultural development than previously thought.

There’s One Last Place Planet 9 Could Be Hiding (www.universetoday.com)

Planet Nine explains many things about orbits of objects in the outer solar system that would be otherwise unexplainable and would each need some sort of separate explanation. The cluster of the directions of the orbits is the best know, but there is also the large perihelion distances of many objects, existence of highly...

Aliens Could Be Trying to Get Our Attention Via Supernova-Timed Beacons (gizmodo.com)

A recent SETI (Search for Extraterrestrial Intelligence) effort focused on a famous supernova from 1987, working under the premise that aliens might use such events to draw attention to themselves with synchronized beacons. Although this hunt came up short, it lays the groundwork for future searches using the same innovative...

New research discovers adult Komodo teeth are surprisingly similar to those of theropod dinosaurs (phys.org)

Kilat, the largest living lizard at the Toronto Metro Zoo, like other members of his species (Varanus komodoensis), truly deserves to be called the Komodo dragon. His impressive size and the way he looks at you and tracks your every move makes you realize that he is an apex predator, not unlike a ferocious theropod dinosaur....

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