Topic: Mercury (Planet)
Top galleries, list articles, quizzes
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In Pictures: Space photos of the day: Mercury
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In Pictures: Space photos of the day: The Moon
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In Pictures: Space photos of the day 09/10
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In Pictures: Space photos of the day 08/16
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In Pictures: Space photos of the day 07/06
All Content
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NASA surprised to spot ice on Mercury
NASA's Messenger probe enabled researchers to find unexpected materials frozen in Mercury's north pole. Scientists think the materials arrived via comets or asteroids that hit millions of years ago.
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What sets newly found super Earth apart? It's simple as night and day. (+video)
Scientists say they have found a planet seven times more massive than Earth orbiting in a star's habitable zone 42 light-years away. It could have seas, and perhaps just as important, it could have an Earth-like climate because it has a day-night cycle.
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Star hurtling through space near humongous black hole could prove Einstein's theory
The discovery offers scientists a unique chance within the decade to test Einstein's theory of relativity in an extreme environment.
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NASA awards $1.1 billion to Boeing, SpaceX, Sierra Nevada Corporation
Three private companies – Boeing, SpaceX, and the Sierra Nevada Corporation – will share $1.1 billion from NASA to help restore the US human spaceflight program.
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How did an entire star system's worth of dust just vanish? Scientists baffled.
An accretion disk around a young star has suddenly disappeared, leaving astronomers wondering where all the dust went.
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Does Saturn's moon hide underground oceans?
Observations of how Titan warps as it orbits Saturn provides strong evidence for a liquid ocean buried under the surface of the gas giant's largest moon.
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Mercury crater mysteriously resembles Mickey Mouse
NASA discovered a Mercury crater that resembles Mickey Mouse's head.
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Transit of Venus: Skywatchers rejoice in rare space event (+video)
Around the world on Tuesday, civilians and scientists alike took advantage of the rare transit of Venus across the sun.
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How to watch the transit of Venus without blinding yourself (+video)
The transit of Venus across the solar disk won't make it okay to stare into the sun. Here's how to watch this rare astronomical event safely.
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What the transit of Venus tells us about alien planets (+video)
The transit of Venus will help astronomers on the hunt for planets outside of our solar system.
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SpaceX Dragon cargo ship splashes down in Pacific Ocean (+video)
The SpaceX Dragon capsule, a privately owned spacecraft, returned to Earth Thursday from the International Space Station
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Transit of Venus: Early 'tape measure' for size of our solar system (+video)
The next transit of Venus occurs June 5. Astronomers once used the transit of Venus across the sun to come up with the 'astronomical unit' – the distance from Earth to our sun.
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SpaceX: Historic space station rendezvous at over 17,000 mph (+video)
The gleaming white Dragon was snared after a few hours of extra checks and maneuvers. The two vessels came together while sailing above Australia at 17,500 mph.
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NASA mission confirms: Ex-asteroid Vesta is a planet that almost was
Data from the orbiter DAWN confirm theories about the history of Vesta, which dates to the early days of planet formation. The protoplanet is also home to the solar system's second largest mountain.
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Planetary wrecking balls: how Jupiter might have destroyed Earth
'Hot Jupiters' are Jupiter-mass planets orbiting close to stars. A study suggests that they might have been kicked inward from their original orbit, destroying or ejecting other planets.
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Mercury: Unusual insides and active history
New information collected by NASA's Messenger shows that Mercury was more geologically active than scientists previously thought.
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Strange features on Mercury upend thinking about 'first rock from sun'
New results from NASA's MESSENGER spacecraft show Mercury to have features unlike anything scientists have seen elsewhere in the solar system. Here's one: a huge core for a planet this size.
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Venus, Jupiter, Mercury, and moon to put on rare spectacle in sky
This past weekend, three planets joined the moon in a rare alignment. On Monday, these celestial bodies will be joined by Mercury.
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Space pioneer John Glenn honored 50 years after historic flight
Hundreds of NASA workers jammed a space center auditorium to mark the 50th anniversary of John Glenn's historic flight, to see and hear the first American to circle the Earth.
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Is NASA giving up on Mars? (+video)
NASA's 2013 budget includes deep cuts to its planetary science mission, particularly its efforts to send spacecraft to Mars. Instead, the space agency will focus on human spaceflight and infrared astronomy. Is NASA now heading down the wrong path?
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Smallest-ever exoplanets found, one step closer to Earth-twin
These planets, while roughly the size of our planet Earth, are circling very close to their star, giving them fiery temperatures that are most likely too hot to support life, researchers said.
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First Earth-size planets found around distant star – in a bizarre solar system
For the first time, NASA's Kepler spacecraft has found two Earth-size planets outside our solar system – a landmark achievement. But the planets are in a solar system that baffles scientists and could overthrow current models of planet formation.
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What will happen after sun vaporizes Earth? Scorched planets hold clues.
Scientists say they've found two planets that survived being swallowed by a red-giant star. Earth won't be so fortunate when our sun becomes a red giant in 5 billion years, but the find shows what can happen to solar systems after such dramatic events.
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Asteroid Vesta features mountain bigger than any on Earth
Asteroid Vesta is currently in the asteroid belt between Mars and Jupiter. Scientists recently discovered a huge mountain on the asteroid Vesta.
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Messenger's message from Mercury: Time to rewrite the textbooks
Scientists with the Messenger mission to Mercury unveiled their findings Thursday, which are answering some decades-old mysteries – but also creating new ones.
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