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An image of Neptune captured by Voyager 2 in 1989. New infrared images of the planet has revealed some surprising temperature changes in its atmosphere over the last two decades. (Image credit: NASA/JPL) Astronomers have discovered a perplexing trend in Neptune’s atmosphere: Ever since the planet’s southern hemisphere summer began almost two decades ago, atmospheric …

A sunrise view of the Artemis I Space Launch System (SLS) and Orion spacecraft at Launch Pad 39B at NASA’s Kennedy Space Center in Florida on March 21, 2022. The SLS and Orion atop the mobile launcher were transported to the pad on crawler-transporter 2 for a prelaunch test called a wet dress rehearsal. Artemis …

Voyager 2 view of Neptune, captured in August 1989. NASA/JPL-Caltech/Kevin M. Gill Some 2.7 billion miles from Earth, the south side of Neptune is in the midst of summer. But it isn’t the kind of summer we’re used to.  Neptune takes around 165 Earth years to finish an orbit around the sun, which means its …

WASHINGTON — Frigid and far-flung Neptune, our solar system’s outermost planet, is adding to its reputation as an enigmatic world, with astronomers puzzled by a surprising drop in its atmospheric temperatures during the past two decades. Focusing upon Neptune’s stratosphere — the atmosphere’s relatively stable region above the turbulent weather layer — the researchers had …

NASA’s Space Launch System (SLS) rocket with the Orion spacecraft aboard is seen atop a mobile launcher at Launch Complex 39B as the Artemis I launch team prepares for the next attempt of the wet dress rehearsal test, right, as a SpaceX Falcon 9 rocket with the company’s Crew Dragon spacecraft aboard is seen on …

A new study reveals that an ancient collision on the Moon’s south pole changed patterns of convection in the lunar mantle, concentrating a suite of heat-producing elements on the nearside. Those elements played a role in creating the vast lunar mare visible from Earth. Credit: Matt Jones New research shows how the impact that created …

WASHINGTON — After discovering a problem with a valve on the Space Launch System’s upper stage, NASA is delaying a countdown rehearsal and fueling test and modifying it to limit fueling of the upper stage. NASA said in an April 9 blog post that it was delaying the wet dress rehearsal (WDR) for the SLS …

The first all-private team of astronauts sent to the International Space Station arrived safely on Saturday to begin a week-long mission hailed as a milestone in commercial spaceflight. The rendezvous came about 21 hours after the four-man team representing Houston-based startup company Axiom Space lifted off on Friday from Nasa’s Kennedy Space Center, riding a …

Dinosaurs with a meteor Getty Dinosaurs with the asteroid Scientists are piecing together remnants of the day the extinction of the dinosaurs began. According to The New York Times, scientists studying a site in North Dakota believe they have discovered pieces of an asteroid that slammed into Earth about 66 million years ago off the …

Enlarge / Image of the AB Aurigae system, with details of the object shown at the right. On some levels, forming stars and planets is simple: They form where there’s more stuff. So, while the raw material for a star may be a diffuse cloud of gas, the distribution of that gas isn’t entirely even. …