Spaceastur
1.3K posts
@spaceastur
Innovación Educativa. La ciencia espacial en el aula. Proyectos STEAM en el Principado de Asturias. Red Educativa.
Manicouagan crater🇨🇦 from space. Also known as the 'Eye of Québec', this round structure was formed by a giant asteroid impact about 214 million years ago. Spanning 72 km from east to west, it's one of the oldest and largest impact craters on Earth. 📸@CopernicusEU
Desde el @IGN_RObsMadrid te deseamos un feliz año nuevo, y para que puedas disfrutarlo astronómicamente, te ofrecemos nuestro Anuario para 2026. Puedes descargarte gratuitamente una versión PDF o adquirir una copia en papel través de este enlace: astronomia.ign.es/oan/anuario
A new study reveals that Enceladus, one of Saturn’s icy moons, emits significant internal heat not only from its famously active south pole, but also from its previously assumed dormant north pole, challenging earlier assumptions of regional thermal asymmetry. Crafted using archived data from the Cassini mission, researchers compared infrared temperature readings taken during a northern polar winter (2005) and a summer (2015), finding the surface to be roughly 7 K warmer than expected — a signal of conductive heat rising from the subsurface ocean. Quantitatively, the north pole emits around 46 ± 4 milliwatts per square metre, which, when extrapolated over the moon, contributes to a global heat loss estimated at up to ~54 gigawatts, aligning closely with theoretical tidal-heating input. This improved heat-budget balance suggests Enceladus’ ocean could remain liquid and thermally stable for geologic spans, thereby bolstering its credentials as a habitable environment beyond Earth: liquid water, internal warmth, and the potential for chemical richness converge. Moreover, the thermal measurements permit estimations of ice shell thickness, about 20-23 km at the north pole and ~25-28 km globally, which is vital for designing future missions that might probe beneath the crust. 👉 share.google/JYUVsfzPdLCm9T…
La del jueves fue una de esas tardes que se quedan grabadas. Llenar el @PlanetarioMad y sentir tanta energía, curiosidad y emoción en el público fue increíble. Me lo pasé como un niño pequeño. Hacer ciencia es como estar enamorado, ¡quieres contarlo a todo el mundo! ❤️🚀
