Galaxy Quote by John M. Grunsfeld

A 'serious' scientist in 1992 or 1993 had to admit the possibility that planets were really rare, that most stars might not have planets.…

— Debra Fischer

Because of Hubble and other telescopes, we've now discovered that there are probably planets around every star, or virtually every star. There are solar…

— John M. Grunsfeld

The universe is very big - there's about 100,000 million galaxies in the universe, so that means an awful lot of stars. And some…

— Jocelyn Bell Burnell

So many galaxies, so many planets out there in the universe circling so many stars... it just feels like there's a very good chance…

— Brian Greene

For many centuries, humans have speculated that there might be planetary systems around other stars and that there could be extraterrestrial life there and…

— George Smoot

That is a big question we all have: are we alone in the universe? And exoplanets confirm the suspicion that planets are not rare.

— Neil deGrasse Tyson

It now seems logical that all the stars, like our own sun, must have formed with a system of planets around them.

— Debra Fischer

Before 1995, the only planets we knew about were the planets in our solar system.

— Debra Fischer

Theoretically, there are planets with an environment that can support life. As yet there is no evidence that there indeed is life on other…

— Rakesh Sharma

If our solar system is not unusual, then there are so many planets in the universe that, for example, they outnumber the sum of…

— Neil deGrasse Tyson

Given the millions of billions of Earth-like planets, life elsewhere in the Universe without a doubt, does exist. In the vastness of the Universe…

— Albert Einstein

Earlier generations of stars in the galaxy could well have had planets. But really, there was only hydrogen and helium to work with, so…

— Jill Tarter