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EXPLAINED: 27 - The Real Truth

Saturn threw a comet out of the solar system at 6,700 mph. Here's how

Astronomers have discovered that Saturn has thrown a newly found comet on its way out of the solar system. Comet A117uUD is expected to go interstellar at 6,700 mph.

Space

10 weird water worlds in the solar system and beyond

Planetary scientists have been searching the cosmos for liquid water. Here are the most promising water worlds in the solar system and beyond.

Space

Spacecraft To Swing By Earth, Moon On Path To Jupiter

A spacecraft launched last year will slingshot back around Earth and the Moon next month in a high-stakes, world-first manoeuvre as it pinballs its way through the Solar System to Jupiter.

International Business Times

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A moon of Uranus could have a hidden ocean, James Webb Space Telescope finds

Astronomers have found that Ariel, a moon of Uranus, has some of the most carbon dioxide-rich deposits in the solar system, hinting at a buried water ocean.

Space

Not one, but two meteor showers are about to peak – here’s how to catch the stellar show

On any clear night, if you gaze skywards long enough, chances are you’ll see a meteor streaking through the sky. Some nights, however, are better than others.

The Conversation

Mercury has a layer of diamond 10 miles thick, NASA spacecraft finds

Using data from NASA's MESSENGER spacecraft, scientists have determined that the solar system's tiniest planet, Mercury, hides a not-so-tiny secret: a 10-mile-thick mantle of diamond.

Space

If we want to settle on other planets, we’ll have to use genome editing to alter human DNA

When considering human settlements on the Moon, Mars and further afield, much attention is given to the travel times, food and radiation risk. We’ll undoubtedly face a harsh environment in deep space and some thinkers have been pointing to genome editing as a way to ensure that humans can tolerate…

The Conversation

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Signs of life could survive on solar system moons Enceladus and Europa

Signs of life could survive on the icy surfaces of Saturn's and Jupiter's moons, Enceladus and Europa, despite harsh radiation bombardment from the sun and supernovas.

Space

Astronomers want to change how we define a planet — again

Astronomers are proposing a new, more quantitative definition of what makes a planet. The new definition looks more directly at the object's mass — but it would still leave Pluto out of the running.

LiveScience

Win a bundle of digital bookazines worth over $100 with our anniversary birthday cake hunt

Indulge yourself in a special birthday cake hunt onsite competition to celebrate our 25th anniversary.

Space

25 years of exoplanet hunting hasn't revealed Earth 2.0 — but is that what we're looking for?

It's been a long ride for exoplanet science — and for Space.com itself.

Space

Not just space rocks: 6 things we’ve learned about Earth from meteorites and comets

Apart from the Sun, its planets and their moons, our Solar System has vast amounts of space rocks – fragments left over from the formation of the inner planets.

The Conversation

What would happen if a black hole wandered into our solar system?

Black holes aren't "cosmic vacuum cleaners," but what would happen if one wandered into our solar system?

LiveScience

'Dark comets' may have given Earth its water long ago

'Dark comets,' which have no visible tail, could also explain the strange behavior of the interstellar object 'Oumuamua.

Space

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The Conversation

How astronomers work out the size of the Solar System

The size of the solar system is defined by the volume of space over which the Sun’s influence exceeds those of other nearby stars in the Milky Way galaxy. This influence derives from two fundamental forces of nature: gravity and magnetism.

International Business Times

Nearby Exoplanet Could Be First Known Ocean World: Webb Telescope

A planet relatively close to Earth could be the first ever detected with a potentially life-sustaining liquid ocean outside our Solar System, according to scientists using the James Webb space telescope.

The Guardian - UK

A child’s-eye view of the universe: Curiosmos makes space simulation fun

In this primordial take on the life simulator, you bring about the creation of an entire solar system

Space

'Traffic jams' around Uranus could solve the mystery of its weak radiation belts

In 1986, the Voyager 2 spacecraft discovered Uranus has a strangely weak radiation belt. Now, researchers think this could be linked to "traffic jams" caused by the world's warped magnetic field.

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AAP

Ancient asteroid reveals solar system's secrets

Australian scientists studying ancient asteroid fragments collected from space by NASA are answering age-old questions about life on Earth and the solar system.

Space

2 asteroids just zipped by Earth, and NASA caught footage of the action

NASA's Goldstone Solar System Radar has collected invaluable information about two asteroids that flew very close to Earth. Don't worry, neither posed a threat.

Space

The early solar system was donut-shaped, meteorite study suggests

Researchers studying iron meteorites suggest that the early solar system took the shape of a donut, not a dartboard as previously thought.

Space

Mars Odyssey celebrates 100,000 orbits, captures epic view of solar system's largest volcano

NASA's long-running Mars Odyssey orbiter celebrated its 100,000th orbit with a fresh view of Olympus Mons, the largest volcano in the solar system.

Space

What are rogue planets?

Discover the strange world of rogue planets left to wander the cosmos untethered to any star.

Space

Why do some planets have moons? A physics expert explains why Earth has only one moon while other planets have hundreds

Why is that some planets, such as Saturn, have more than a hundred moons, while others, such as Venus, have none?

LiveScience

How many moons are in the solar system?

The solar system has many more moons than the one we can see in the sky. But how many do we actually know about? And how many more are waiting to be discovered?

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