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UNBELIEVABLE: 26 | History Defined

Over 350 asteroids have hidden moons, Gaia space telescope finds

By precisely tracking the orbit of over 156,000 asteroids, the ESA star-surveying satellite Gaia has potentially found over 350 previously undiscovered asteroid-moon binaries.

Space

Ancient grains of dust from space can be found on Earth − and provide clues about the life cycle of stars

In space, there are clouds that contain gas and dust ejected from stars. Our solar system was formed 4.6 billion years ago from such a molecular cloud. Most of these dust grains were destroyed during solar system formation. However, a very small amount of the grains survived and remained intact…

The Conversation

Astronomy ‘Olympics’ is being hosted in Africa for the first time: 4 big talking points

Cutting-edge telescopes, gravitational waves, black holes and our solar system’s central star, the Sun, are just a few of the topics that will be on the table in Cape Town, South Africa, for an event that’s a scientific version of the Olympic Games – though the world’s leading astronomy researchers…

The Conversation

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The sun is a 'runaway world collector' that can trap passing rogue planets

The sun could collect rogue planets and hold them at the outskirts of the solar system for millions of years, occasionally trading them with neighboring star Alpha Centauri.

Space

Astrobiologist Nathalie Cabrol: ‘I believe Mars still has some big surprises for us’

The director of the Carl Sagan Center on the possibility of life elsewhere in our solar system, what Venus can teach us about global heating, and what she thinks of Elon Musk

The Guardian - UK

Friday essay: love and loss in outer space – Ceridwen Dovey on how scientists feel about space objects

This is the day we will sink our own home – it is old, they say, and can’t live forever. I’m among the ones who must lock the dome behind us and throw the keys in the river of stardust in which we’ve swum for so long. Happy new year!…

The Conversation

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

It sounds like science fiction, but many scientists believe editing the human genome is key to our advancement across the solar system.

Space

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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

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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Space

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.

LiveScience

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.

Space

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.

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The Conversation

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.

LiveScience

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?

Space

'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.

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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