NASA White Dwarf Merger Collision
A white dwarf star is as dense as a city squished into the size of the Earth. Usually that’s the end of a star’s life. But sometimes they don’t go quietly. An international team of astronomers using NASA’s Hubble Space Telescope discovered a rare beast: an ultra-massive white dwarf formed by a catastrophic collision with another star rather than a steady fading.

3D-Printed Rainwater Filter Self-Cleaning
Rainwater collection is supposed to be simple—set up a barrel, catch the drops, water your plants. But anyone who’s tried it knows the messy reality: leaves, twigs and roof grit clogging filters faster than you can say “downpour.” This clever solution by NeedItMakeIt consists of a 3D-printed self-cleaning water filter, inspired by hydroelectric systems, that promises to keep your rain barrel flowing without the hassle.