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Solar System

New Research

Raging Rivers May Have Washed Over Mars for Billions of Years

A study of 200 river systems shows the waterways persisted even while the atmosphere was disappearing and the Red Planet was drying up

The most recent vortex on the left and the first one discovered in 1989 by Voyager 2.

New Research

There’s a Dark and Stormy Vortex Brewing on Neptune

It is the sixth massive dark and stormy vortex found on the planet since 1989 and the only one astronomers have watched develop

A mural titled "The Origin of Life on Earth" at NASA Ames Research Center. The mural depicts the formation of our planet and the conditions that led to the evolution of life.

Earth’s Rock Record Could Reveal the Motions of Other Planets

Studying the layers of Earth’s crust, scientists have created a “Geological Orrery” to measure planetary motions dating back hundreds of millions of years

New Research

Mars May Have Had a Planet-Wide System of Underground Lakes

A study of 24 craters shows they experienced the simultaneous rise and fall of groundwater, suggesting they were interconnected at one time

Artist’s impression of NASA’s New Horizons spacecraft encountering 2014 MU69, a Kuiper Belt object that orbits one billion miles (1.6 billion kilometers) beyond Pluto, on Jan. 1, 2019. With public input, the team has selected the nickname “Ultima Thule” for the object, which will be the most primitive and most distant world ever explored by spacecraft.

Ring in the New Year With NASA’s Most Distant Planetary Encounter in History

The New Horizons spacecraft is on final approach to the distant Kuiper Belt Object, Ultima Thule, and you can follow along live

An artist's conception of the view from Farout.

Cool Finds

Meet Farout, the Solar System’s Most Distant Minor Planet

Observations suggest the object is 300 miles in diameter, pinkish-red and 3.5 times as far away from the sun as Pluto

The Ten Best Science Books of 2018

These titles explore the wide-ranging implications of new discoveries and experiments, while grounding them in historical context

The color-enhanced image was created by citizen scientists Gerald Eichstädt and Seán Doran using data from the spacecraft's JunoCam imager, according to NASA.

Cool Finds

Juno’s Latest Photo of Jupiter Is Breathtaking

The image, processed from JunoCam’s raw data, shows storms and winds in the planet’s Northern Temperate Belt

Water found deep within the planet's interior contains different ratio of heavy hydrogen isotopes and normal hydrogen, pointing toward separate point of origin

Where Did Earth’s Water Originate? Solar Nebula, Study Suggests

Researchers say the hydrogen contained in these clouds of gas and dust contributed to formation of one out of every 100 water molecules found on Earth

Well then what would we call a cow that jumps over a moonmoon?

New Research

If a Moon Has a Moon, Is Its Moon Called a Moonmoon?

A new study suggests it’s possible some moons could have moons and the internet wants to give them a name—but scientists have yet to actually find one

New Research

Saturn’s Rings Rain Organic Compounds Into Its Atmosphere

The Cassini probe’s final flybys show that 22,000 pounds of material per second drops from the rings into the planet’s ionosphere

An artist’s conception of a distant Solar System Planet X, which could be shaping the orbits of smaller extremely distant outer solar system objects like 2015 TG387.

New Discovery Stirs Up Signs of the Elusive Planet 9

A new minor planet called “the Goblin” is the second most distant known object in the solar system

Artist's rendering of "Orbital Reflector," a reflective space sculpture set to be launched into space this October

Art Meets Science

Astronomers Say This Reflective Space Sculpture Will Cause Unneeded Light Pollution. The Artist Argues Otherwise

‘Orbital Reflector,’ a 100-foot long, diamond-shaped balloon, aims to inspire humans to gaze up at the night sky with a renewed sense of wonder

An eroded area of the Medusae Fossae Formation.

New Research

Most of Mars’ Dust Comes From One Place

Erosion of the Medusae Fossae Formation has, over billions of years, likely covered the entire planet in 10 feet of volcanic dust

Cool Finds

Jupiter Officially Has 12 New Moons

The new satellites are mostly tiny and include one oddball that is on a collision course with some of the 78 other moons orbiting the planet

A 2018 colorized image of Jupiter's south pole created by citizen scientist Gabriel Fiset, using data from NASA's Juno spacecraft.

How Jupiter May Have Gifted Early Earth With Water

A new model of the solar system suggest we have gas giants to thank for our watery world

An illustration of lightning on Jupiter's northern hemisphere, using an image from the JunoCam.

New Research

Jupiter’s Lightning Is More Earth-Like Than We Thought

Juno is providing scientists with new insights into the gas giant’s flashes of light

Illustration of Sedna, a minor planet with an unusual orbit.

New Research

Is the Mysterious Planet Nine Just a Swarm of Asteroids?

Researchers investigate alternative explanations for wacky orbits of objects in our solar system

Images of 2015 BZ509 captured by the Large Binocular Telescope Observatory.

New Research

Is This Backwards-Orbiting Asteroid an Interstellar Visitor?

The space rock could have been captured from another star system during the early days of our solar system

Asteroid 2010 WC9 as it appeared on May 15, 2018, at a distance of 453,600 miles.

An Asteroid Will Hurtle Past Earth Tonight in Close Flyby

While the space rock poses no danger to our planet, such a close pass is uncommon for asteroids of this size

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