A study led by the University of Leicester has linked fossilized tracks of flying reptiles to the specific animals that created them. Fossilized footprints dating back more than 160 million years have helped paleontologists at the University of Leicester determine when pterosaurs began adapting to life on land. Although these impressive flying reptiles from the [...]

Scientists have analyzed amino acids preserved in snail shells to determine a new age for the world’s oldest complete wooden hunting weapons. The world-famous Schöningen spears, discovered in Schöningen, Germany, are turning out to be younger than scientists once believed. An international research team has revised their age to about 200,000 years old — 100,000 [...]

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The number of satellites orbiting Earth is rising fast, thanks to private companies such as SpaceX. But just how big will these "megaconstellations" become? And what problems might they cause?

Just when astronomers think they're starting to understand stellar activity, something strange grabs their attention. That's the case with a newly discovered stellar object called ASKAP J1832-0911. It lies about 15,000 light-years from Earth and belongs to a class of stellar objects called "long-period radio transients." That means it emits radio waves that vary in their intensity on a schedule of only 44 minutes per cycle. It does the same thing in X-ray intensities, which is the first time anybody's seen such a thing coupled with long-period radio transits.