Shop Windows to the Universe

Check out the fun Earth science related bumper stickers in our online store! Express yourself!
Tau1 Gruis, the star that the newly discovered exoplanet orbits around.
Courtesy of NASA/JPL

More than 100 planets orbit distant stars!
News story originally written on September 25, 2002

Astronomers have found another planet outside our solar system. That makes a total of 102 exoplanets that have been found so far!

The astronomers that found the exoplanet, have been searching outside our solar system for planets like Earth. The planet they found is three times as far from its star as Earth is from the Sun and its mass is like Jupiterís.

The solar system of the discovered planet looks a bit like ours. The planets are strung out in a line from the star with the larger planets further away from the star.

To look for exoplanets, astronomers look for far-away stars that look like they sway back and forth. They look like they sway because the planets pull on the star as they orbit around it.

After astronomers find exoplanets that are like Earth, they will look for evidence of life. Perhaps they will someday find that we are not alone in the universe!


Shop Windows to the Universe Science Store!

Our online store includes books on science education, ranging from evolution, classroom research, and the need for science and math literacy!

Windows to the Universe Community

News

Opportunities

You might also be interested in:

Cool It! Game

Check out our online store - minerals, fossils, books, activities, jewelry, and household items!...more

An Exoplanet that Looks Like Jupiter!

A team of scientists found 13 planets that are outside our solar system. Because these planets are outside our solar system, they are called exoplanets. One of these exoplanets is special because it may...more

1999--A Year in Review...

It was another exciting and frustrating year for the space science program. It seemed that every step forward led to one backwards. Either way, NASA led the way to a great century of discovery. Unfortunately,...more

STS-95 Launch: "Let the wings of Discovery lift us on to the future."

The Space Shuttle Discovery lifted off from Kennedy Space Center on October 29th at 2:19 p.m. EST. The sky was clear and the weather was great. This was the America's 123rd manned space mission. A huge...more

Moon Found Orbiting Asteroid

Scientists found a satellite orbiting the asteroid, Eugenia. This is the second one ever! A special telescope allows scientists to look through Earth's atmosphere. The first satellite found was Dactyl....more

U.S. is Fed Up with Russia

The United States wants Russia to put the service module in orbit! The module is part of the International Space Station. It was supposed to be in space over 2 years ago. Russia just sent supplies to the...more

More on Recent Coronal Mass Ejection

A coronal mass ejection (CME) happened on the Sun last month. The material that was thrown out from this explosion passed the ACE spacecraft. ACE measured some exciting things as the CME material passed...more

Mother Nature's Air Conditioning

Trees and plants are a very important part of this Earth. Trees and plants are nature's air conditioning because they help keep our Earth cool. On a summer day, walking bare-foot on the sidewalk burns,...more

Windows to the Universe, a project of the National Earth Science Teachers Association, is sponsored in part is sponsored in part through grants from federal agencies (NASA and NOAA), and partnerships with affiliated organizations, including the American Geophysical Union, the Howard Hughes Medical Institute, the Earth System Information Partnership, the American Meteorological Society, the National Center for Science Education, and TERC. The American Geophysical Union and the American Geosciences Institute are Windows to the Universe Founding Partners. NESTA welcomes new Institutional Affiliates in support of our ongoing programs, as well as collaborations on new projects. Contact NESTA for more information. NASA ESIP NCSE HHMI AGU AGI AMS NOAA