Astronomers have upped the odds of an asteroid called 2024 YR4 striking Earth, albeit in 2032, but warn that it will most ...

From his backyard in Arizona, astrophotographer Andrew McCarthy has captured stunning photos of the celestial objects high ...

Unlike simultaneous, class-wide tests or exit tickets, Mastery Checks allow students to demonstrate learning at their own ...

NASA astronaut Bruce McCandless became the first person to go on a spacewalk without a tether. McCandless was wearing a type of jetpack known as the Manned Manoeuvring Unit, or MMU. The MMU fit over a ...