RT @NASASpox: This week, @NASA celebrated America's aerospace legacy while building its future 🇺🇸✈️ @Freedom250 flyovers in DC🧑‍🚀 New cr…

NASA’s Cassini spacecraft captured this view of Europa and Io transiting Jupiter during its 2000 flyby, with the Great Red Spot visible below. Both moons show partial shadowing as they cross the planet’s turbulent atmosphere. Jupiter’s immense gravity, over 300 times Earth’s mass, governs the orbital dance of its four Galilean moons and drives the intense tidal heating responsible for Io’s extreme volcanism, the most active in the solar system. That same gravitational flexing is thought to maint

It’s #SunDay! Here’s your space weather report for the week of June 19 - 25:• 4 M-class flares• 0 C-class flares• 42 coronal mass ejections• 0 geomagnetic storms This video from NASA’s Solar Dynamics Observatory (SDO) shows the week’s activity. All the action this week comes from two clustered active regions, AR14472 and AR14473. You can see them rotate onto the Sun’s disk from the Eastern limb (left side of the Sun) starting at about 0:30 into the video, and continue with several flares and bri