Orbital science, astronomy, remote sensing, and what lies beyond the atmosphere.
A new arXiv study from the South Pole Telescope collaboration reports a catalog of 7,190 confirmed galaxy clusters found in five years of observations from Antarctica. The survey used the SPT-3G camera to search for faint distortions in the cosmic microwave background, the ancient afterglow of the Big Bang. The catalog is one of the…
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NASA’s July 2026 skywatching guide points to a month when familiar objects take on new arrangements. The Moon moves past bright planets, the Milky Way gains a darker stage and Comet 10P/Tempel 2 becomes a tempting target for patient observers. The month’s appeal comes from timing. Some events unfold before sunrise, when Saturn, Mars and…
NASA’s official Webb announcement shows how near- and mid-infrared vision can peel back the dusty center of Centaurus A, a nearby galaxy reshaped by a major cosmic collision. Released for the James Webb Space Telescope’s fourth science anniversary, the new images reveal millions of stars, intricate dust structures and activity around a feeding supermassive black…
The European Space Agency’s Euclid announcement reports that the space telescope has discovered 31 ancient quasars from the universe’s earliest era, including two record-setting objects seen as they existed just 670 million years after the Big Bang. The discoveries are described in a study published in Astronomy & Astrophysics and they more than double the…
