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Hubble Detects Ghostly Glow Surrounding Our Solar System

A survey of the residual light in the night sky has uncovered an eerie, omnipresent glow spread throughout the Solar System, thought to be caused by sunlight reflected from cometary dust. Over its 30-plus years of operations, astronomers have become accustomed to subtracting the background light from the Solar System from Hubble’s images. They are ...

Troy Oakes

The Hubble telescope Hidden Treasures.

The Instability at the Beginning of the Solar System

A spartan scientist has helped develop a new explanation for why our solar system is the way it is — and why others are, too. Michigan State University’s Seth Jacobson and colleagues in China and France have unveiled a new theory that could help solve a galactic mystery of how our solar system evolved. Specifically, how did ...

Troy Oakes

All stars, including our Sun, are born from a cloud of dust and gas.

Does Earth’s Water Actually Come From the Scorching Sun?

Earth is very water-rich compared to other rocky planets in the Solar System, with oceans covering more than 70 percent of its surface. Scientists have long puzzled over where all that water came from. Curtin University researchers have helped unravel the enduring mystery of the origins of the Earth’s water, finding the Sun to be ...

Science Unmasked

Sun seen through a curling wave of water.

Hubble Takes a Grand Tour of the Solar System

The NASA/ESA Hubble Space Telescope has completed its annual grand tour of the outer Solar System. This is the realm of the giant planets — Jupiter, Saturn, Uranus, and Neptune — extending as far as 30 times the distance between Earth and the Sun. Unlike the rocky terrestrial planets like Earth and Mars that huddle close to ...

Troy Oakes

Jupiter, Saturn, Neptune, and Uranus.

Ride With Juno as It Flies Past the Solar System’s Biggest Moon and Jupiter

On June 7, 2021, NASA’s Juno spacecraft flew closer to Jupiter’s ice-encrusted moon Ganymede than any spacecraft in more than two decades. Less than a day later, Juno made its 34th flyby of Jupiter, racing over its roiling atmosphere from pole to pole in less than three hours. Using the spacecraft’s JunoCam imager, the mission team has put ...

Troy Oakes

The dark side of Ganymede.

NSF’s Newest Solar Telescope Produces First Images

Just released first images from the National Science Foundation’s Daniel K. Inouye Solar Telescope reveal unprecedented detail of the Sun’s surface and preview the world-class products to come from this preeminent 4-meter solar telescope. NSF’s Inouye Solar Telescope, on the summit of Haleakala, Maui, in Hawai‘i, will enable a new era of solar science and ...

Troy Oakes

A red sunset over the ocean.

Here and Gone: Outbound Comets Are Likely of Alien Origin

Astronomers at the National Astronomical Observatory of Japan (NAOJ) have analyzed the paths of two outbound comets heading out of the Solar System forever and determined that they also most likely originated from outside of the Solar System. These results improve our understanding of the outer Solar System and beyond. Not all comets follow closed ...

Troy Oakes

A comet traveling through space.