Perhaps as bacteria have been around millions of years longer than humans.
Yes They have been on earth for 450,000,000 years, that's longer than dinosaurs
bacteria
Many think that some bacteria may have been the first to orbit the Earth.
If you include bacteria, then about 4 billion years. (The earliest KNOWN life is 3,5 billion years old, but it had probably been around longer). If you want multicellular organisms , then about 1.2 billion years. Cambrian time period.
Not as far as anyone knows, and it's really very unlikely. Traveling at the speed of light ... which is impossible for people ... it would take millions of years ... which is longer than people have existed ... to reach the Andromeda Galaxy. So it's probably a safe bet that earth people have never been there.
Mercury, Venus, Earth and Mars. Pluto has been demoted, and is no longer considered to be a planet.
Penicillin, an antibiotic, kills bacteria. It was the first antibiotic used, and has been around for a long time. As it has been used, the bacteria that it kills have become resistantto it. Part of this has been caused by not totally eradicating the bacteria in the body. The bacteria that survive demonstrate resistance, and continue to multiply -- only, the strain of bacteria that is left is now resistant to penicillin.All antibiotics are susceptible to this effect. That is why, when you are prescribed an antibiotic by a doctor, you will be instructed to take all the antibiotic medication, even if you feel you are well and think you no longer need it. The goal is to kill all the bacteria and prevent the creation of a resistant strain of it.
Normally this would come under biology, However many bacteria are involved in geological processes (e.g. stromatolites) and it has been found that bacteria live deep down in the rocks of the planet. Thus were bacteria are involved in this way their study would be of concern to the earth scientists too.
There have been hurricanes probably longer than there have been people.
Tarantulas have been on Earth for at least tens of thousands of years, probably much longer. Their ancestor species have been on Earth since before the dinosaurs, hundreds of millions of years ago.
Longer than the Earth has been around.