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A giant extraterrestrial 'wave' hit Earth 14 million years ago — and may have dramatically altered our planet's climateOur solar system's journey around the center of the Milky Way takes it through varying galactic environments, and one may have had a lasting impact on Earth's climate, according to a new study.
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Astronomers identify a celestial '3-body problem' lurking in the outer solar systemNew research suggests that a binary pair of Kuiper Belt objects, known as the Altjira system, is actually made up of three separate bodies orbiting one another in a complex triad. This rare orbital configuration is often referred to as the "three-body problem."
astronomy -
'Planet parade' ends with a rare conjunction of Venus and Mercury at sunset. Here's how to watch.The two innermost planets, Venus and Mercury, will shine together low in the western sky at sunset on March 10. Here's how to get the best view before they disappear.
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'Primordial' helium from the birth of the solar system may be stuck in Earth's coreThe discovery that helium and iron can mix at the temperatures and pressures found at the center of Earth could settle a long-standing debate over how our planet formed.
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'Planet parade' photo captures 7 planets in a line over Earth — possibly for the 1st time everA stunning photo of a "parade of planets", shows Mars, Jupiter, Uranus, Saturn, Venus, Neptune, and Mercury in alignment from Earth. The image could be the first of its kind.
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Did a supernova 6 million years ago kickstart evolution in Africa? New study offers a clueA curious connection between an ancient supernova and virus diversification in one of Earth's biggest lakes means that crazy cosmic events may have had more influence on our planet than we thought.
astronomy -
'Planet parade' 2025: See the ultra-rare planetary alignment peak this week, before Saturn gets swallowed by the sunsetA stunning "parade of planets" will grace the night sky this week, with all seven of Earth's celestial neighbors joining the show. Here's how to spot it and why it happens.
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NASA supercomputer reveals strange spiral structure at the edge of our solar systemThe mysterious Oort cloud is the source of many of our solar system's comets, but astronomers still have no idea what it looks like. Now, new simulations may have given them a first glimpse.
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1 million 'interstellar objects' — each larger than the Statue of Liberty — may lurk in the outer solar systemNew simulations reveal that around 1 million "macroscopic" objects from our closest stellar neighbors, the Alpha Centauri system, may already reside in the Oort Cloud, far from sight.
7 Commentsastronomy
