What can collide with Earth?

Earth impact hazard, the danger of collision posed by astronomical small bodies whose orbits around the Sun carry them near Earth. These objects include the rocky asteroids and their larger fragments and the icy nuclei of comets.
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How likely is an asteroid to hit Earth?

Therefore, the chance that such an object will hit us in any given year is roughly 1 in 300,000 -- nothing to lose sleep over. Many scientists believe an extremely large asteroid (about six miles in diameter) struck Earth 65 million years ago near the present-day Yucatan peninsula of Mexico.
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Can Jupiter collide with Earth?

But at least we won't have to worry about colliding with Jupiter's core, because we'll never make it there. Our planet is too small and would burn up in the atmosphere before that ever happens. This would have a huge impact on Jupiter, as the Earth's remains would completely mix into its atmosphere.
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Can a planet collide with another planet?

Diagrams of the Solar System give the impression that the orbits of Neptune and Pluto cut right across each other, and textbooks even state that Pluto crossed the orbit of Neptune in February 1999. Yet in reality the two planets can never get close to colliding, for two reasons.
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Can Uranus collide with Earth?

By their calculations, it would take Uranus 13 years to reach the collision point. We'd be short on time, but at least we'd have a slight chance to evacuate the Earth. But the cold blue giant had other plans in mind.
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Could a Planet Ever Collide With Earth?



What if Earth had rings?

At the equator, the rings would appear to divide the sun, casting a dramatic shadow over half the world. Likewise, the rings themselves would cast shadows on Earth.
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What if Saturn crashed into Earth?

However, if Saturn were to come closer to Earth (after chucking the Moon out of orbit), imagine the scale of ocean tides then. There would be huge… no, apocalyptic tidal waves that would rage all over the planet and destroy everything in their path.
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What if Pluto hit Neptune?

The closest point of Pluto's orbit is within that of Neptune's, and so their oribits do "cross". There is no chance of a collision however, because Pluto's orbit is quite tilted with respect to the other planets' orbits and so when Pluto does this crossing, it is actually well below the plane that Neptune orbits in.
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What if Mercury collide with Earth?

Such an impact would kill all life on our planet. Nothing would survive. By contrast, the asteroid that doomed the dinosaurs 65 million years ago was likely just 6 miles in diameter; Mercury is 3,032 miles across. The last time an object about that size hit the Earth, the resulting debris formed our Moon.
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Will the Moon collide with Earth?

Short answer: Technically it's possible that the Earth and Moon could collide in the very distant future, but it's very unlikely. It's certainly not going to happen while any of us are alive. Long answer: The Moon is in a stable orbit around Earth.
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Did Pluto get blown up?

Pluto never blew up. It was, however, disqualified as a planet and categorized as a dwarf planet.
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What planet blew up?

An asteroid or icy object collided with the gas giant Jupiter on Sept. 13, where it eventually blew up in the planet's thick clouds. A Brazilian space photographer, José Luis Pereira, captured the rarely-seen solar system event, which is shown in the intriguing footage below.
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What would happen if you planted a tree on Mars?

Therefore, under Martian gravity, the soil can hold more water than on Earth, and water and nutrients within the soil would drain away more slowly. Some conditions would make it difficult for plants to grow on Mars. For example, Mars's extreme cold temperatures make life difficult to sustain.
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How would NASA stop an asteroid?

Instead of shattering the asteroid, the energy created by a nuclear blast would be used to irradiate a portion of the asteroid's surface. The asteroid would eject a stream of material that would act as a rocket, diverting the asteroid away from a collision course with the Earth.
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How big asteroid will destroy Earth?

Ultimately, scientists estimate that an asteroid would have to be about 96 km (60 miles) wide to completely and utterly wipe out life on our planet.
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Can humans survive on other planets?

To conclude, any new human colonisation on another planet would be very difficult. The extreme weather conditions, the chemistry of the atmosphere and the vast amounts of resources needed to support human life all play into this.
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Will the Earth hit the Sun?

Finally, the most probable fate of the planet is absorption by the Sun in about 7.5 billion years, after the star has entered the red giant phase and expanded beyond the planet's current orbit.
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How many years until the Sun dies?

Astronomers estimate that the sun has about 7 billion to 8 billion years left before it sputters out and dies.
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Can Earth and Venus collide?

A force known as orbital chaos may cause our Solar System to go haywire, leading to possible collision between Earth and Venus or Mars, according to a study released Wednesday. The good news is that the likelihood of such a smash-up is small, around one-in-2500.
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Is Jupiter a failed star?

"Jupiter is called a failed star because it is made of the same elements (hydrogen and helium) as is the Sun, but it is not massive enough to have the internal pressure and temperature necessary to cause hydrogen to fuse to helium, the energy source that powers the sun and most other stars.
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What is Xena planet?

For the first time, NASA's Hubble Space Telescope has seen distinctly the "tenth planet," currently nicknamed "Xena," and found that it's only slightly larger than Pluto. Though previous ground-based observations suggested that Xena's diameter was about 30 percent greater than Pluto, Hubble observations taken Dec.
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What crashed into Pluto?

Now research suggests the impact that carved out Sputnik Planitia is to blame. According to simulations replicating that cataclysm, it sent powerful seismic waves around and through Pluto, reaching the area on the other side of the world and tearing up the land there to make the strange features seen by New Horizons.
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What planet rains diamonds?

Deep within Neptune and Uranus, it rains diamonds—or so astronomers and physicists have suspected for nearly 40 years. The outer planets of our Solar System are hard to study, however. Only a single space mission, Voyager 2, has flown by to reveal some of their secrets, so diamond rain has remained only a hypothesis.
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What if Jupiter hit Sun?

As Jupiter made its way to the sun, it would disrupt the orbits of all the other planets, and possibly destroy them, as well as the asteroid belt. By the time Jupiter got to the sun, the entire solar system would have become unstable.
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What if Earth had multiple moons?

If Earth had two moons, it would be catastrophic. An extra moon would lead to larger tides and wipe out major cities like New York and Singapore. The extra pull of the moons would also slow down the Earth's rotation, causing the day to get longer.
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