Spacetime With Stuart Gary

SpaceTime Series 27 Episode 120*Planet Earth Just Got a Second MoonPlanet Earth has temporarily acquired a second moon, a tiny near-Earth asteroid named 2024 PTS. Captured by Earth's gravitational field on September 29, this 10-metre wide Space rock will remain in orbit until November 25, making it one of only five known mini moons. Discovered by the Atlas asteroid terrestrial impact last alert system, 2024 PTS belongs to the Arjuna asteroid group and is too small to be seen with the naked eye but can be observed through a telescope.*Mars' Missing Atmosphere Could Be in Its CrustA new study suggests Mars' missing atmosphere could be hiding in plain sight within the planet's crust. The research, published in the journal Science Advances, posits that ancient water on Mars may have reacted with the planet's ultramafic igneous rocks to form smectite clays, trapping carbon dioxide and converting it into methane. This process could account for up to 80% of Mars' initial atmosphere, providing a potential future ener