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Your search for "terrestrial planet" returned 90 results
How NASA Planetary Protection Works
science.howstuffworks.com/nasa-planetary-protection.htm
What if your job were to protect life in the galaxy at all costs? Read about NASA's Planetary Protection program at HowStuffWorks.
Could an extremely powerful solar flare destroy all the electronics on Earth?
science.howstuffworks.com/solar-flare-electronics.htm
Solar flares and their effect on electronics are explained in this article. Learn about solar flares.
Who Are the Real Men in Black?
science.howstuffworks.com/space/aliens-ufos/men-in-black.htm
Men in black have been in UFO folklore since Albert Bender mysteriously shut down his International Flying Saucer Bureau. Where do men in black come from and whose interests do they serve?
What Are the Nitrogen Cycle Steps?
science.howstuffworks.com/life/biology-fields/nitrogen-cycle.htm
The nitrogen cycle is the system by which nitrogen is converted into different chemical forms, some usable to humans and animals and some not, as it circulates among the atmosphere, the land and the oceans.
What Is the Longest Living Animal? From Tortoises to Whales
www.howstuffworks.com/longest-living-animal.htm
Jeanne Louise Calment, who lived to the ripe age of 122, witnessed incredible milestones in human history, from the unveiling of the Eiffel Tower to the advent of the internet. Her long life, spanning well over a century, is a testament to human resilience and longevity.
How the 'Wow!' Signal Works
science.howstuffworks.com/science-vs-myth/unexplained-phenomena/wow-signal.htm
In 1977, SETI volunteer Jerry Ehman saw a transmission so exciting he circled it on paper and wrote the word "Wow!" It seemed to indicate a message from outer space. But what was it really?
Who owns the oceans?
science.howstuffworks.com/environmental/earth/oceanography/international-water.htm
International water covers 71 percent of the Earth's surface and includes five oceans. Learn how international water is shared among all the nations.
How Telescopes Work
science.howstuffworks.com/telescope.htm
For centuries, curious observers have probed the heavens with the aid of telescopes. Today, both amateur and professional scopes magnify images in a variety of ways.
Is Taurus an Earth Sign? Exploring Earth Energy in Taurus
entertainment.howstuffworks.com/horoscopes-astrology/is-taurus-an-earth-sign.htm
Explore zodiac elements and learn how Taurus embodies the grounded Earth element with traits like reliability, practicality and loyalty in the zodiac.
Scientists Make History by Growing Plants in Soil From Moon
science.howstuffworks.com/plants-grown-moon-soil-news.htm
University of Florida scientists used lunar soil collected during Apollo 11, 12 and 17 missions to successfully grow plants from seed. It's a first in human history and could help future space colonists grow food on the moon.