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Right now, as you read this, Earth is drifting through a cloud of debris from an ancient stellar explosion. Stardust, real stardust, is raining down on us so thinly scattered that...
Venus, often called Earth's twin, is in fact a planet of extremes. Beneath its thick carbon dioxide atmosphere are crushing surface temperatures and dense clouds of sulfuric acid....
No dust, no way to cool a collapsing gas cloud. No way to cool it, no stars. No dust, no first rung on the ladder from grain to pebble to planet. The substance I spent two articles...
"This dust can penetrate the shielding of the solar system and end up on Earth."
Dust scatters light, absorbs light, re-emits light, and ruins everything. It's why our maps of the Milky Way were wrong before 1930, and it's why one of the biggest cosmological an...
When you think of outer space, you're likely picturing stars, planets and moons. But much of space is filled with clouds of gas, plasma and stardust—known as interstellar clouds.
Author(s): Rachel BerkowitzIron-60 buried in Antarctica reveals changes in the local interstellar environment.[Physics 19, s54] Published Wed May 13, 2026
Three hundred kilograms of Antarctic ice, shipped from a freezer in Bremerhaven to a laboratory in Dresden, reduced by weeks of chemical processing to a few hundred milligrams of d...
Our solar system is currently passing through the Local Interstellar Cloud, a region of highly diluted gas and dust between the stars. On its path, Earth continuously accumulates i...
Silicon carbide (SiC) dust is one of the most important ingredients in cosmic dust, the tiny particles floating throughout the cosmos that eventually give rise to new planets and s...
Years of grievance against dust. It ruins lungs, suits, rovers, and Mars missions. The first installment of an apology, sort of, to the most annoying substance in the cosmos.
Learn how traces of a rare radioactive element preserved in Antarctic ice may show that the Solar System is currently passing through debris left behind by exploded stars.
Iron-60 discovery in Antarctic ice reveals: Local Interstellar Cloud leaves its mark.
Our Solar System is currently passing through the Local Interstellar Cloud, a region of highly diluted gas and dust between the stars. On its path, Earth continuously accumulates i...
Venus has been hiding a secret for fifty years. Just below its main cloud deck sits a mysterious layer of haze that spacecraft first detected in the 1970s and nobody could explain...
Two hydrogen atoms can't form an H2 molecule on their own in empty space. They need a surface. The universe has only one surface available, and it's something I have just spent two...
Astronomers may have found an explanation for one of the biggest mysteries revealed by the James Webb Space Telescope (JWST): why so many galaxies in the early universe appear unex...
Learn more about the new method astronomers are using to help estimate newborn planets' masses based on dust rings.
Earth is flying through the radioactive ashes of an ancient exploded star, and Antarctic ice preserved the evidence. Scientists have found new evidence that Earth is moving through...
A travel diary frozen for tens of thousands of years.ScienceAlert stories are written, fact-checked, and edited by humans, never generated by AI. Don't miss a story, subscribe here...
Across Earth, every night, thousands of automated stargazers are waiting to take pictures of shooting stars. I am one of the scientists who study these meteors.
"Instead of only trying to keep lunar dust away, we began to think about how to use it."
A century after their discovery, cosmic rays—particles of extreme energy originating from the far reaches of the universe—remain a mystery to scientists. The DAMPE (Dark Matter Par...
A breathtaking new image captures the Crystal Ball Nebula, the remains of a dying star found in the constellation Taurus.
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