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A graphic of Mercury’s internal structure. Credit: Antonio Genova

Evidence on Mercury’s inner core is indeed solid

In order to explore the interior of a planet, planetary scientists usually observe the planet spins and then measure how their probe orbits it....
New Neptune-to-Saturn-size planet orbiting between two previously known planets

New Neptune-to-Saturn-size planet orbiting between two previously known planets

Astronomers have discovered a third planet in the Kepler-47 system, securing the system’s title as the most interesting of the binary-star worlds. Using data...
An artist's rendition of Planet X. NASA

Solar system’s hidden Planet X may finally be spotted soon

Over the course of the past two decades, observational surveys have unveiled the intricate orbital structure of the Kuiper Belt, a field of icy...
Artist’s impression of the newly discovered object.

Japanese astronomers spot new class of object in the Kuiper Belt

A team at the National Astronomical Observatory of Japan has discovered a new class of object that has long been thought to exist in...
A view from NASA's Cassini spacecraft shows Saturn's northern hemisphere in 2016 as that part of the planet nears its northern hemisphere summer solstice. A year on Saturn is 29 Earth years; days only last 10:33:38, according to a new analysis of Cassini data. Credit: NASA/JPL-Caltech/Space Science Institute

Scientists finally know what time it is on Saturn

Saturn is the sixth planet from the Sun and the second-largest in the Solar System, after Jupiter. This gas giant actually has no solid surface...
The young protostar L1527 in the Taurus molecular cloud – Artistic representation

Early protostar already has a warped disk

The planets in our solar system orbit the sun in planes that are at most around seven degrees offset from the equator of the...
Artist concept of 2018 VG18, nicknamed "Farout." CREDIT Illustration by Roberto Molar Candanosa is courtesy of the Carnegie Institution for Science.

Astronomers discovered the most-distant solar system object

Astronomers have recently detected the most-distant body ever observed in our Solar System. The object has been given the provisional designation 2018 VG18. 2018 VG18, nicknamed "Farout"...
On its second flight, FOXSI captured evidence of hard X-ray emission from nanoflares. FOXSI’s observations of hard X-rays are shown in blue outlining the very hottest regions of the solar atmosphere, superimposed over a soft X-ray image of the Sun from the Japan Aerospace Exploration Agency’s (JAXA) and NASA’s Hinode solar-observing satellite

NASA-funded rocket to view Sun with x-ray vision

Sun, the hot ball of glowing gases at the heart of our solar system. Most of the gas — 91 percent — is hydrogen....
Europa’s Ocean Ascending

Europa’s Ocean Ascending

In a new study by the NASA’s Jet Propulsion Laboratory, scientists studied new animation that demonstrates how deformation in the icy surface of Europa...