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Burning lithium inside a star

The violent histories of hot Jupiters

... way that these planets orbit their parent stars. In our own solar system, the planets orbit the Sun in very similar ... in the surface of the plate. In addition, the Sun's own rotation axis is closely aligned with the orbits of the ... discs -- clouds of gas and dust that collapse under their own gravity, flattening into a swirling disk. The central ...

Artist's impression of the Milky Way: the stars are collapsed into a flat disc

Dark matter close to home

... mysterious material that produces no visible light of its own, but which astronomers need to explain the tremendous ... see: dark matter. But how much dark matter is there in our own solar system, and could we detect it? We think there's ... throughout the galaxy, whereas planetary systems like our own are tiny condensations of matter -- a few lighthours ...

The Hubble Space Telescope (HTS) begins its separation from Space Shuttle Discovery following its release on mission STS-82.

Water in Another Solar System

... will eventually end up at around 60% of the mass of our own Sun.  TW Hydrae is a very well-studied system because ... eventually form into a planetary system not dissimilar our own Solar System. It's interesting to ask how similar to our ... both comets, and eventually wet habitable planets like our own Earth. Our Solar System may not be alone in having an ...

Spying on the stars

... orbiting around a star - obviously not including our own solar system.  Publishing their results in the journal ... also younger, with a big far-out dust disk, similar to our own Kuiper belt.   The planets, which formed about sixty ... that the system may be a scaled-up version of our own Solar System, but going round a brighter and bigger star. ...

 Artist's concept of what a future telescope might see in looking at the black hole at the heart of the galaxy M87. Clumpy gas swirls around the black hole in an accretion disk, feeding the central beast. The black area at center is the black hole...

Stopping star formation in its tracks

... behind how galaxies form and develop, including our own cosmic neighbourhood, the Milky Way. Dr. Marc Sarzi, who ... forming stars a long time ago, and other galaxies like our own that have continuously formed stars throughout its ... where stars have been forming continuously, like our own Sun, 5 billion years ago." The cosmic gales from black ...

Jupiter's aurora works in unearthly ways

... stare even further, inquiring if other planets have their own auroras and, if so, are they the same as Earth’s. One ... Mauk divulges that “the rotation of Jupiter within its own large magnetic field acts an electrical generator” and ... that Jupiter’s auroras actually look very similar to our own Northern lights, just bigger. So if future humans ever ...

Star Devouring a Planet

How Massive can a Star be?

... stars, which have less than a tenth as much gas as our own Sun, to giant stars like Betelgeuse, with masses of ... planet like Jupiter, rather than a star that produces its own light. At the opposite end of the mass spectrum, if a gas ...

The planetary system harboring Kepler-138 b, the first exoplanet smaller than Earth with both its mass and size measured.

Smallest exoplanet mass measured

... The findings will help us to understand more about how our own Solar system was formed. Writing in Nature this week, ... distant or about 10 million times farther away than our own Sun, orbits the red dwarf star Kepler-138. It was ...

Merope star

Lithium shows scientists where to find far-off planets

... spectrum of light given off by a star, whilst others - our own Sun included - contain less than 1% of this amount. To ... into account, a surprising trend emerged. Stars like our own Sun, with planets, lacked lithium, whilst their more ...

 Artist's concept of what a future telescope might see in looking at the black hole at the heart of the galaxy M87. Clumpy gas swirls around the black hole in an accretion disk, feeding the central beast. The black area at center is the black hole...

Are black holes magnetic?

... galaxy. This is the nearest example of a black hole to our own sun, and it weighs millions of times the mass of our sun. ... we think stars have quite strong magnetic fields. Our own sun for example has quite a strong magnetic field and ...

A black hole concept drawing by NASA.

Star shredded by Black Hole

... visible from the northern hemisphere. Just like our own Milky Way galaxy, Draco has a massive black hole, ... equivalent to about the orbit of Pluto from the Sun in our own system, the outer hydrogen coat of the star was stripped ...

Comparative sizes of Kepler planets, through Kepler-22b

Earth-sized exoplanet, but 3000 degrees

... "exoplanet" was discovered orbiting a star other than our own Sun, a further 999 similar bodies have now been ... of about 1.86 Earths and is about the same diameter as our own planet. The density is about 5.5g per centimetre-cubed, ...

2004 BL86

Asteroid fly-past

... asteroid 2004 BL86, which, new images reveal, even has its own moon! The distance to the passing "near Earth object" - ... Earth was treated to a fly-past by an asteroid with its own moon... Asteroid fly-past ...

Artistic impression of gas accretion on a high redshift galaxy.

Galaxy 700 million years after Big Bang

... producing new stars at a rate 150 times greater than our own galaxy. This study is important because data from ... of the Universe and answer questions such as how our own galaxy, the Milky Way, came to be. The most distant ...

Remnants of Kepler's Supernova - This image has been constructed of images from NASA's Spitzer space telescope, Hubble Space Telescope, and Chandra X-ray Observatory.

Most supernovae hidden by dust

... star, yet many seem to go unnoticed. For example, in our own Milky Way galaxy, there's ample evidence that supernovae ...

 Astronaut Bruce McCandless II, mission specialist, participates in a extra-vehicular activity (EVA), a few meters away from the cabin of the shuttle Challenger. He is using a nitrogen-propelled hand-controlled manned manoeuvring unit (MMU). He is...

Can You Do Better Than NASA?

... a glove for a space suit that would out perform their own version.  Space suit gloves are very important, because ...

The distant exoplanet TrES-2b, shown here in an artist's conception, is darker than the blackest coal.

NASA discovers ‘Mega-Earth’

... reach great sizes. This is common to all the giants in our own solar system, such as Neptune or Saturn. Kepler-10c ...

The moon taken by Appolo 12

Lunar X-Prize Heats Up

... of designing, planning, testing and fundraising for their own lunar missions.  To win the huge sum, they need to be ...

Milky way galaxy

Earth-sized exoplanet with an atmosphere detected

... The mass of the star is only about 20% of the mass of our own Sun, meaning that it is relatively cool and dim, which ...

Artist’s impression of super-Earth 55 Cancri e, showing a hot partially-molten surface of the planet before and after possible volcanic activity on the day side.

Volcanic Super-Earth

... are intensively studied to help give us clues about our own origins and early formation. The planet in question, 55 ...

Burning lithium inside a star

Planet caught in the act of forming

... an interstellar gas cloud collapsed inwards due to its own gravitational self-attraction, around five billion years ...

Zeta Ophiuchi -- Runaway Star Plowing Through Space Dust

WISE Spots Runaway Star

... Speeding runaway stars are interesting objects on their own account, but can also help us to learn more about their ...

Artist's impression of the James Webb Telescope

The Future of Space Exploration

... the International Space Station, so it's really just our own imagination and technology that limits us. I think it ...

Researchers confirm the existence of water on an extrasolar planet

... orbiting a star 60 light years away. Like our own Jupiter the planet's a gas giant, but unlike our solar ...

Martian meteorite NWA7635, discovered in Algeria in 2012, has allowed an international team of scientists to gain new insights into the geologic history of Mars. (Image credit: Mohammed Hmani)

Meteorite from a Martian volcano 2.4 billion years ago

... crossed the Earth's orbit and made a fiery journey to our own planet's surface. The houston team used mass spectrometry ...