Tag: universe

How the XRISM spacecraft can study the X-ray universe with only 36 pixels

A new X-ray space telescope is broadening our understanding of the universe with just three dozen pixels — really putting smartphones with as many as 12 million to 48 million pixels to shame! The Japan Aerospace Exploration Agency (JAXA) and NASA spacecraft known as the X-ray Imaging and Spectroscopy Mission (XRISM; pronounced “crism”) launched in […]

Across the universe, dark matter annihilation could be warming up dead stars

Scientists posit that some dead stars made from the densest material in the known universe, so-called “neutron stars,” could act as traps for dark matter particles that smash together at high speeds and annihilate one another. In turn, the crew says, the annihilation process likely heats the dead stars from the inside out. In general, […]

Euclid ‘dark universe’ telescope’s vision restored by deicing campaign

The Euclid “dark universe” probe’s ailing vision has been restored after an experimental deicing campaign successfully evaporated ice from the telescope’s mirrors, the European Space Agency (ESA) announced on Tuesday (March 26). Ice layers as wide as a single DNA strand had collected on Euclid‘s mirrors, causing a small but progressive decrease in the amount […]

Euclid ‘dark universe’ telescope gets de-iced from a million miles away

Just like drivers scrape ice from car windshields during the winter, scientists with the European Space Agency’s (ESA) Euclid observatory are trying to “de-ice” the telescope — from a million miles away. Ice layers, about as wide as a single DNA strand, have accumulated on Euclid’s mirrors. Although small, the ice appears to have caused […]