Could aliens visit Earth? Here are some challenges
Scientists say it’s unlikely aliens visit Earth anytime soon, because interstellar travel faces huge barriers of distance, energy and time. The post Could aliens visit Earth? Here...
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BOOM over Massachusetts and U.S. East probably a meteor
Many reported a streak across the daytime sky and a boom over Massachusetts and surrounding areas in the US East, probably a meteor. The post BOOM over Massachusetts and U.S. East...
Visible planets and night sky guide for May and June
Visible planets and night sky guide. The full-appearing Blue Moon is still in the sky tonight. Watch a video about it with EarthSky's Deborah Byrd. The post Visible planets and nig...
Can a single season have only 2 full moons?
We know it's possible to squeeze 4 full moons into a single season. But can a season have just 2 full moons? Turns out it can, but it is rare. The post Can a single season have onl...
Deneb is an incredibly distant star. But how do we know?
The star Deneb - part of the Summer Triangle - is one of the most distant stars you can see with your eye alone. But why don't we know its distance precisely? The post Deneb is an...
How cities can change the weather during storms
Researchers looked at 22 years of data to discover how cities can change the weather. Certain storms intensify over cities, leading to more urban flooding. The post How cities can...
Sun news: Solar wind surges, brings aurora to high latitudes
Sun news for May 31, 2026: Solar wind surges past 550 km/s! Kp hits 4. G1 storm chance today. Glancing CMEs may add fuel. Aurora watchers, stay alert! The post Sun news: Solar wind...
Blue Origin mega-rocket explodes on launch pad
Blue Origin experienced a setback late Thursday when its New Glenn mega-rocket exploded. The launch pad was also destroyed. The post Blue Origin mega-rocket explodes on launch pad...
Arcturus, brightest star of the northern sky
Arcturus is the brightest star in the northern half of the sky. It's easy to find in spring in the Northern Hemisphere near the handle of the Big Dipper. The post Arcturus, brighte...
The 1919 solar eclipse that proved Einstein right
During a May 29, 1919, solar eclipse, astronomers saw the sun bend starlight, proving Einstein's general relativity and catapulting him to rock star fame. The post The 1919 solar e...