NASA’s Swift Sees ‘Wandering’ Mega Black Hole Shredding Star
Quick Summary
NASA’s Neil Gehrels Swift Observatory captured an “orphan” black hole lighting up as it devoured a star on the outskirts of a faraway galaxy. These phenomena are rare to begin with, and none had ever before been seen so far outside of a galaxy’s core. “We were looking for these star-shredding events as a way […]
Space Explainer: Mapping Our Solar System
Our solar system contains eight planets, five recognized dwarf planets including Pluto, and well over 200 moons, along with countless asteroids and comets left over from its formation roughly 4.6 billion years ago. Every world in it formed from the same swirling disk of gas and dust around the young Sun, which is why terrestrial planets cluster near the Sun and gas giants dominate the outer solar system.
Spacecraft have now visited every planet at least once, but exploration remains wildly uneven — Mars and the Moon have been mapped in exhaustive detail, while Uranus and Neptune have each been seen up close for only a few days total, during single flybys decades ago.
Explore the Solar SystemSource: NASA
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