What else is in the universe?
The universe contains all of the galaxies, stars, and planets. The exact size of the universe is unknown. Scientists believe the universe is still expanding outward.
What are the signs of life?
Consciousness, effective breathing, circulation and skin characteristics sometimes are referred to as signs of life.
Is there life on Venus?
To date, no definitive proof has been found of past or present life on Venus. Theories have decreased significantly since the early 1960s, when spacecraft began studying the planet and it became clear that its environment is extreme compared to Earth’s.
Does life exist on other worlds?
We know of at least one place that definitely has all three, Earth, and in our case life managed to thrive. Perhaps it could exist on other worlds, too, like one of the thousands of planets we’ve found in our galaxy so far. Astronomers have long pondered the question of whether we’re alone in the universe, as have science fiction authors.
What are the three basic ingredients of life?
There are three basic ingredients for life as we know it: liquid water, a source of energy, and organic compounds. We know of at least one place that definitely has all three, Earth, and in our case life managed to thrive.
Is there life on other planets in the universe?
Given that the galaxy (and universe) for that matter, is rich with the basic elements that went into creating life, it’s very likely that yes, there are planets with life on them.
Is there life around other stars?
Life on planets around other stars also might be hidden in a subsurface ocean encased in ice, invisible even to our most powerful space telescopes. Moons of Jupiter and Saturn are known to harbor such oceans, some revealing through remote sensing at least a few of the characteristics we expect for habitable worlds.