The International Space Station racing across the Moon. At a blistering 8 kilometers per second, the ISS glides across the Moon’s face, momentarily kissing Tycho Crater — a massive impact scar 53 miles wide. Though it appears as if the space station is orbiting the Moon, it’s actually 1,000 times closer to Earth, creating an illusion of proximity. A stunning snapshot, captured by Andrew McCarthy, showcasing the vastness of space and the speed of the ISS. #InternationalSpaceStation #TychoCrater #SpaceExploration #Astronomy #NASA

Captured by the Apollo 15 crew from a distance of 85,000 km, this breathtaking image shows Earth as a tiny, vibrant blue dot against the vastness of space. The crew’s camera immortalized a moment when our home looked more fragile than ever before, reminding us of how small we are in the infinite universe. #Apollo15 #EarthFromSpace #PlanetEarth #NASA #SpaceExploration #Astronomy

You Just Traveled 3,728 Miles Without Lifting a Finger As you sit here, seemingly still, you’re actually racing through space at breathtaking speeds. In just the next 10 seconds, Earth will carry you about 186 miles (300 km) in its orbit around the Sun. That’s because our planet zips through space at an average speed of 18.82 miles per second (30.29 km/s). Even when it slows to 18.50 mi/s (29.29 km/s), you're still soaring faster than any spacecraft. But that’s just the beginning. Our entire solar system is also orbiting the heart of the Milky Way Galaxy, dragged along by the Sun as it travels at 124 miles per second (200 km/s). That means you've just moved another 1,243 miles (2,000 km) through the galaxy—without even noticing. And it goes even deeper. The Milky Way itself is zooming through the universe at 373 miles per second (600 km/s), carrying our solar system along for the ride. That’s an additional 3,728 miles (6,000 km) you’ve just covered, while sitting perfectly still. Despite these staggering speeds, it still takes our solar system about 230 million years to complete just one orbit around the galaxy’s center. And beyond all of that? The universe continues to expand, galaxies drifting apart in a cosmic dance with no end in sight. So the next time you feel like you’re going nowhere, remember this: You're always moving. Always traveling. Always part of something far greater. #SpaceFacts #CosmicPerspective #Astronomy #MilkyWay #Universe

Martian Sunset Captured by NASA’s Curiosity rover, this gentle blue twilight over Mars is nothing like Earth’s fiery sunsets. Fine Martian dust filters the sunlight, scattering blue hues across the fading sky—a calm, otherworldly close to a day on the Red Planet. The First Black Hole Ever Seen In 2019, the Event Horizon Telescope gave us the unimaginable: an image of a black hole in galaxy M87. A glowing ring surrounding darkness, it brought Einstein’s theories to life and gave a face to one of the universe’s deepest mysteries. Hubble Deep Field A silent glimpse into the dawn of time. What once looked like empty space was revealed by the Hubble Space Telescope to be teeming with galaxies. Each tiny dot is a galaxy—some billions of light-years away—each a chapter in the universe’s ancient story. #SpaceExploration #MarsSunset #BlackHole #HubbleDeepField #Astronomy #NASA

Jupiter, the colossal gas giant of our Solar System, may have been even more massive in its youth. According to a new study published in Nature Astronomy, around 3.8 million years after the Solar System began to form, Jupiter could have been 2 to 2.5 times larger in volume than it is today, with a magnetic field up to 50 times stronger. This conclusion comes from researchers Konstantin Batygin (Caltech) and Fred Adams (University of Michigan), who examined the unusual, tilted orbits of Jupiter’s inner moons—Amalthea and Thebe. These tiny satellites carry important clues about Jupiter’s early structure and helped scientists trace back the planet’s evolutionary path. Their findings reinforce the core accretion theory, which posits that gas giants begin as solid rocky cores and quickly gather gas once they surpass a certain size threshold. Jupiter’s rapid growth not only influenced its own development but also shaped the broader layout of our Solar System. As the surrounding gas thinned out, Jupiter contracted under its own gravity to reach its present-day size. Despite its early bulk, Jupiter never came close to becoming a star—it would’ve needed at least 85 times its current mass to ignite fusion. Still, this study marks a major step in understanding how massive planets form and how they shape their cosmic neighborhoods. RESEARCH PAPER Konstantin Batygin & Fred C. Adams, “Determination of Jupiter’s primordial physical state”, Nature Astronomy (2025)