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Here’s a solar system being born
Astronomers have spied 2 rings of dust around a young star, DM Tau. The image shows what our own solar system might have looked like as its planets were forming, 4.6 billion years ago.
March 28, 2019
NASA proposes mission to Neptune moon Triton
Triton is Neptune's largest moon. It's a bizarre and geologically active world - a possible ocean moon - visited by Voyager 2 in 1989. Now, NASA has proposed a new mission called Trident to sweep past Triton again in 2038.
March 28, 2019
What happened before the Big Bang?
How can we get an inkling of what existed before our universe began? Scientists at the Harvard-Smithsonian Center for Astrophysics suggest a way.
March 27, 2019
Jupiter’s 700,000-year journey toward the sun
Scientists in Sweden say that Jupiter - largest planet in our solar system - formed 4 times farther away from the sun than its current orbit. They believe it moved inward toward the sun in a journey lasting 700,000 years.
March 27, 2019
What’s going on with Jupiter’s Red Spot?
This giant storm has remained a nearly constant feature of Jupiter's turbulent atmosphere for at least 300 years. How can a storm persist for so long?
March 25, 2019
Great images of fireball over Bering Sea
Last December 18, a big "fireball" or bright meteor exploded above the Bering Sea with more than 10 times the energy of the atomic blast over Hiroshima. Satellites saw it all.
March 24, 2019
Scientists gather to contemplate The Great Silence
Are we alone? If advanced alien civilizations are out there, why haven't we heard from them? Scientists call this Fermi's Paradox - aka The Great Silence - and they gathered in Paris to discuss it.
March 24, 2019
How aspen leaves could save Mars rovers
Aspen trees - fondly called Quakies by some - have trembling, quivering leaves. Now those leaves have inspired an energy-harvesting mechanism that might rescue dust-laden rovers on Mars.
March 22, 2019
Astronomers clock super-fast pulsar speeding through space
The runaway pulsar escaped the blast wave of the supernova that formed it, astronomers say, and is hurtling through space so fast it could travel from Earth to the moon in just 6 minutes.
March 22, 2019
A jet stream in Europa’s ocean?
Jupiter's moon Europa likely has a subsurface ocean, possibly salty, with volcanic vents on its ocean floor. A new study suggests it might also have an oceanic jet stream, comparable to the Gulf Stream back here on Earth.
March 19, 2019
