Well, sweet pea, if the sun were significantly larger than it is now, Earth would get toasted faster than a marshmallow on a summer BBQ. The increased size would also result in a stronger gravitational pull, leading to some intense tidal forces and potentially disrupting our cozy little planet. So, long story short, we'd be fried and flung into space like a cosmic Frisbee.
Antares is about 800 times larger than our Sun. The Sun is about 109 times larger than The Earth. So Antares is about 87,200 times larger than The Earth. So you could fit about 663,054,848,000,000 Earths inside Antares. (663 trillion) See related link for a comparison to the Sun
If the earth got pulled in closer to the sun, or if the sun expands significantly, then the earth will get much warmer. That said, nothing like that is going to happen for a couple billion years yet.
the people said they would pray for protection
It would take about 9 years to travel from Earth to Jupiter, assuming a similar speed and trajectory as the trip from Earth to Mars. Jupiter is much farther away from Earth than Mars, so the journey would be significantly longer.
On the moon, it would take less energy to set the block in motion due to the decreased gravity, but you would also find yourself in a much more difficult position. With less gravity, you would have significantly less traction, and would be more likely to push yourself away from the block (assuming the block is significantly larger than yourself). Though, if you had something fixed against which to brace (a vertical rock face, for example), you would be able to push the block more easily on the moon than on earth.
A 20,000 mile wide object would not be a meteor; it would be a planet significantly larger than Earth. In that case Earth, which is about 8,000 miles wide, would definitely be destroyed.
If Earth were significantly closer to the Sun, it would be hotter, and water would be mainly in the form of vapor (gas).If Earth were significantly farther away, it would be colder, and most water would be frozen (ice).
If everyone in the world jumped at the same time, the impact on the Earth would be very minimal. The combined force of all the people jumping would not be enough to significantly affect the Earth's rotation or orbit. The Earth is much larger and heavier than all the people on it, so the effect would be negligible.
Yes, they would be a little more common than they are. A lunar eclipse happens when the Moon goes into the shadow of the Earth. If the Earth was larger, the Earth's shadow would also be larger. For some times when the Moon currently just misses the Earth's shadow, if the Earth (and its shadow) were larger, the Moon wouldn't miss.
Nothing would happened to Earth. (that is obvious!)
yes
A rock that is larger than Earth would be a planet in its own right. Rocky planets larger than Earth do exist outside of our solar system.
Nothing.
Earth is significantly larger than Ceres. Earth has a diameter of about 12,742 kilometers, while Ceres has a diameter of about 940 kilometers. This makes Earth more than 13 times larger in diameter than Ceres.
Uranus' surface area is 8.1156 x 109 Km2 or 5.04280005 x 109 Miles. In relation to Earth, it would be the same size as 15.91 Earths.
Yes. An asteroid that enters Earth's atmosphere is known as a meteorite. If the object is small in size it will simply burn up in the Earth's upper atmosphere. If the object is significantly larger, it has a possibility of impacting the ground or ocean depending on its mass and composition.
It would be better to ask what would happen if Earth hit a star, as stars are much larger than Earth is. The planet would be vaporized by the intense heat.