answersLogoWhite

0


Best Answer

Because they have been observed.

Not only by indirect means but also by optical means - when a planet moves across the front of a star.

User Avatar

Wiki User

13y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: How do scientist know exoplanet exist?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

Are there other planets like earth in your galaxy where life exits?

Scientist believe there are but none have been found yet. We are currently in the process of searching for an exoplanet in the habitable zone. Also Scientist believe bacteria life could exist on Mars and Saturn's Moon Titan.


Can an exoplanet have an exosphere?

Yes. While we know relatively little about the atmospheres of individual expolanets, there is no reason an exoplanet couldn't have an exosphere.


What exoplanet can you survive on other than earth?

We do not know enough about conditions on any exoplanet to determine if any would be suitable for humans.


How many miles is the exoplanet away from the earth?

which exoplanet is 'THE exoplanet'?


What is the largest exoplanet?

We won't know that until we are sure that we have discovered all of them.


What is the darkest exoplanet?

The darkest exoplanet is "TRES-2B".


Is mercury an exoplanet?

No. An exoplanet is a planet outside of our Solar System.


How much does a unicorn weight?

we do not know, scientist have not proved that they exist yet. sorry. Assuming that they did exist they would weigh 1 horn more then a horse.


How did scientist discover exoplanets?

They are very difficult to detect as they cannot be seen directly; trying to see a relatively dark object (exoplanet) next to a very bright object (star) is virtually impossible. But they can be detected indirectly by several means:the star and the exoplanet orbit each other causing the star's location to "wobble"if the orbit of the exoplanet is in the plane of the earth/star then it will eclipse the star and these periodic dimmings of the star can be detectedthe star and the exoplanet orbit each other causing doppler shifts in the star's spectral linesetc.


Do scientist know if the Greek Gods exist?

the greek gods do not exist but are lord god dose but always beliven god and he will all way help you in needs


Is 51 pegasi an exoplanet?

51 Pegasi itself isn't an exoplanet, it's a Sun-like Star. But it does have an Exoplanet orbiting it, 51 Pegasi b (informally named Bellerophon.).


Does the scientist have a proof that GOD EXIST?

No.