Artemis II launches to the Moon & Three asteroids safely pass Earth - Space News (Apr 1, 2026)

Let's start with the headline event: Artemis II is launching today. This is historic. For the first time since nineteen seventy-two, four astronauts are boarding a spacecraft to travel around the Moon. NASA is targeting a launch window that opens at six twenty-four PM Eastern Time today from Kennedy Space Center in Florida. The rocket they're using is absolutely massive—three hundred twenty-two feet tall, which makes it taller than the Statue of Liberty. Commander Reid Wiseman, Pilot Victor Glover, and Mission Specialist Christina Koch are all from NASA, while Jeremy Hansen from Canada's Space Agency completes the crew. Hansen will become the first non-American to travel to the Moon. The mission itself will take about ten days, looping around our celestial neighbor and returning safely to Earth. Weather conditions are looking favorable, with NASA reporting an eighty percent chance of good launch conditions today. This is more than just a symbolic moment—it's a test flight for the Orion spacecraft and the Space Launch System, which will prove these vehicles can safely carry humans to deep space and back.

While all eyes are on the Moon today, Earth itself had some interesting cosmic visitors yesterday. Three asteroids safely passed by our planet on March thirty-first. The smallest was about the size of a school bus, passing roughly one point eight million miles away. The largest stretched about seventy-two feet across, similar in size to an airplane. None of these space rocks posed any danger to us—they remained millions of miles distant, far beyond the Moon's orbit. What makes this significant is that these flybys give scientists valuable opportunities to refine their asteroid tracking systems and learn more about the composition of these ancient space rocks. NASA and other agencies use these close approaches to improve our early warning capabilities for any potentially hazardous asteroids that might threaten Earth in the distant future.

Speaking of objects in orbit, SpaceX experienced an issue with one of their Starlink satellites on Sunday, March twenty-ninth. The satellite underwent what SpaceX calls a fragmentation event, which means it broke apart in orbit. SpaceX immediately analyzed the situation and confirmed that the debris poses no risk to the International Space Station, its crew, or to today's Artemis II launch. The company is continuing to monitor the fragments and working with NASA and the U.S. Space Force to track the debris. SpaceX is also investigating what caused the anomaly in the first place. This incident highlights the growing challenge of space debris, but it also shows how seriously organizations take orbital safety when thousands of satellites are operating in low Earth orbit.

Shifting our focus to the cosmos, astronomers using the James Webb Space Telescope have spotted something extraordinary. They detected a gamma-ray burst that behaves unlike anything seen before. Gamma-ray bursts are typically brief, intense explosions caused by massive stars collapsing into black holes or neutron stars. They usually fade in under a minute. But this one, designated GRB two-fifty-seven-oh-two-B, lasted for a full seven hours. That's roughly four hundred to four hundred fifty times longer than normal. Researchers combined data from multiple observatories to study this event, collecting signals across gamma rays, X-rays, infrared light, and radio waves. Scientists are still puzzling over what caused this unusual behavior. One possibility is that it represents a new type of black hole interaction with a companion star. Another theory involves a black hole tearing apart a star that wandered too close. This discovery could fundamentally change how we understand these extreme cosmic events.

On a related note, researchers analyzing data from the LIGO, Virgo, and KAGRA gravitational wave observatories have completed their most comprehensive test yet of Einstein's general relativity. They used gravitational wave detections from black hole mergers to examine whether Einstein's theory holds up under extreme cosmic conditions. The results? General relativity passes with flying colors. Scientists found no deviations from Einstein's predictions, even when examining the finest details of how spacetime behaves near black holes. They also ruled out several alternative gravity theories that have been proposed over the years. While this might sound like Einstein simply won again, what's truly important here is that gravitational wave astronomy has become precise enough to actually test the fundamental nature of reality. Within just one decade of observations, we now have the tools to explore the limits of gravity itself.

If you're planning to step outside tonight, keep your eyes on the sky. A geomagnetic storm is forecasted, which means aurora activity could be visible across much of the northern United States and Canada. This follows a powerful solar flare that erupted on March twenty-ninth, and a coronal mass ejection that's heading toward Earth. Minor to moderate geomagnetic storm conditions are expected, which could paint the night sky with green and purple lights. If you're in a location with clear skies and minimal light pollution, you might witness this natural light show that happens when charged particles from the Sun interact with Earth's atmosphere.

Finally, if you're interested in catching a comet, mark your calendar for late April. Comet C/two-thousand-twenty-five R-three, discovered by the PanSTARRS telescope system in Hawaii, will make its closest approach to Earth on April twenty-seventh. It reaches its closest point to the Sun on April twentieth. The comet may become bright enough to see with binoculars, and there's a chance it could be visible to the naked eye under dark skies. The brightness of comets is notoriously unpredictable, but some predictions suggest it could rival the brightness of the brightest stars in the constellation Cassiopeia. The best viewing will be in the pre-dawn sky in late April for those in the Northern Hemisphere.