astrometry
astrometry
Astrometric Technique
transit
So far, no "planet like Earth" has been discovered. However, our telescopes are only barely good enough to be able to detect a planet the size of Earth that far away.
Water does exist on Earth. Earth is the only planet known to have liquid water.
Yes! Life could be found on planet earth!
Earth
What is the third planet from the sun?What is the only known planet with life?
No, Earth is a planet (dirt could also be called earth). People (such as you and I) are humans.
There are many planets outside our solar system, some bigger and some smaller. So far we have mostly found larger ones as it is harder to detect ones the size of Earth and smaller.
nothing
If Earth combusted? Then it would be either a black hole (mabye not big enouph) or the particles would begin to form a new planet, or it could just disapear.