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Researchers uncovering eyewitness accounts of powerful solar storms of the past say we should expect at least one super-storm from the sun per century. | Continue reading
One of the largest groups of 17-year cicadas, Brood X, last emerged from underground in 2004. The next generation will begin arriving in April 2021. | Continue reading
Astronomers in Hawaii have detected the Yarkovsky effect - a minuscule push imparted by sunlight - for asteroid Apophis. The effect is particularly important for Apophis, because it relates to the possibility of an Earth impact in 2068. | Continue reading
A new survey of our galaxy by astronomers with VERA in Japan has shown that Earth is both moving faster and is closer to the supermassive black hole at the center of our galaxy than previously thought. But don't worry, our planet is safe! | Continue reading
Jupiter's gravity slings long-period comets out of harm's way, while nudging some asteroids closer to Earth. And, in 1770, Jupiter took aim on Earth - but missed. | Continue reading
Jupiter and Saturn come to conjunction on December 21, 2020. At their closest, they'll be only 0.1 degrees apart. That's just 1/5 of a full moon diameter. Don't wait. Start watching them now! | Continue reading
A newly discovered | Continue reading
Billions of years from now, Earth's night sky will change as the Andromeda galaxy rushes toward a merger with the Milky Way. | Continue reading
Comet C/2020 F3 (NEOWISE) is basically a binocular object, although some experienced observers with pristine skies are reporting they can see it with the eye alone. This post has information and charts that will help you see the comet. | Continue reading
New research finds that microplastics are emitted into the atmosphere. | Continue reading
EarthSky is joining the grassroots effort to #ShutDownSTEM and #Strike4BlackLives on Wednesday, June 10. Thousands of researchers around the world have pledged to pause their work on Wednesday to support the ongoing Black Lives Matter movement and efforts against racism in the sc … | Continue reading
Italy’s northern border with Switzerland depends on the natural, morphological boundaries of glaciers’ frontiers. But in recent years, glaciers have been melting at increased rates due to climate change. This has caused the border to shift noticeably. | Continue reading
The theory of relativity describes black holes as being spherical, smooth and simple. Quantum theory describes them as being extremely complex and full of information. New research now proposes a surprising solution to this apparent duality. | Continue reading
And how many potentially exploding stars are located within the unsafe distance? | Continue reading
The Southern Hemisphere has had two Great Comets recently - McNaught in 2007 and Lovejoy in 2011. When will the Northern Hemisphere get one? | Continue reading
Unusual dark patches in Venus' atmosphere - called | Continue reading
It's an early Harvest Moon in 2019, coming up on September 13 and 14 for the Northern Hemisphere. | Continue reading
On August 14, gravitational wave detectors in the US and Italy sensed ripples in space-time. Data analysis suggests they came from a black hole engulfing a neutron star, 900 million light-years from Earth. If so ... it's a first-ever detection by earthly scientists. | Continue reading
Most people don’t associate the US Pacific Northwest with earthquakes, but maybe they should. It’s home to the 600-mile (1,000-km) Cascadia megathrust fault, stretching from northern California to Canada’s Vancouver Island. | Continue reading
Just because you don't have the flu doesn't mean that your aren't teeming with viruses inside and out. But what are all these viruses doing, if they aren't making you sick? | Continue reading
All perching birds - the majority of the world’s bird population - originated in Australia, researchers report. | Continue reading
On Earth, oxygen is a signature byproduct of life. But what if astronomers found oxygen in the atmosphere of a planet orbiting a distant sun? Would that prove life exists there? Not necessarily, says a new study. | Continue reading
In 1670, skywatchers saw a nova, a star that appeared where none had been before. Today's astronomers have learned it was a collision between an aging white dwarf star, and less massive brown dwarf. | Continue reading