The radius of a planet is a fundamental parameter that probes its composition and habitability. Precise radius measurements are typically derived from the fraction of starlight blocked when a planet ...

3I/ATLAS is only the third object of its kind ever observed, following the interstellar asteroid 1I/ʻOumuamua in 2017 and the interstellar comet 2I/Borisov in 2019.

NGC 1514’s two central stars, which appear as one in the image from the NASA/ESA/CSA James Webb Space Telescope, formed this scene over thousands of years -- and will keep at it for thousands more.

Physicists at the Technion - Israel Institute of Technology say they have observed a new form of quantum entanglement in the total angular momentum of photons confined in nanoscale structures.

Paleoanthropologists from the University of Vienna and Harvard University have analyzed ancient DNA from 435 individuals from Eurasian archaeological sites dating between 6400-2000 BCE. They’ve ...