Latest Terrestrial planets Stories

Transit Of Venus Only A Day Away...Are You Prepared?
2012-06-04 10:00:17

[ Watch the Video ] Lee Rannals for redOrbit.com If you aren't looking up towards the sun tomorrow with the proper eye equipment, then a special moment is going to pass you by. The Transit of Venus is taking place on Tuesday, and it will not be seen again until 2117. The transits of Venus occur in pairs once every 100 years, so this upcoming transit is the last until the next generation gets their opportunity. Astronaut Don Pettit is up in the International Space Station armed...

Focused Alien Hunt Coming Up Empty Thus Far
2012-06-04 03:15:31

A technique that allows radio astronomers to combine observations made simultaneously by multiple arrays has yet to detect any signs of extraterrestrial broadcast signals, Australian researchers have confirmed. In a study posted online May 29 and scheduled for publication in the Astronomical Journal, experts at the Curtin University International Centre for Radio Astronomy Research used very long baseline interferometry (VLBI) to examine Gliese 581, a star which is orbited by planets...

Reports Confirm Existence Of Habitable Exo-Planet
2012-04-28 03:28:20

After re-evaluating information collected back in February, scientists reportedly confirmed on Friday that they had indeed discovered a planet outside of our solar system that is capable of supporting life. The planet, which was been dubbed Gliese 667Cc, orbits around a red dwarf star located 22 light years away from Earth, according to published reports from the Telegraph. Scientists told the newspaper that Gliese 667Cc lies in what they refer to as the "habitable zone," which means that...

Image 1 - New Research Reveals Details About Earth's Asteroid Impacts
2012-04-25 13:53:40

Lee Rannals for RedOrbit.com Researchers are reporting in the journal Nature that tiny "spherules" embedded in layers of rock have given them details about Earth's asteroid impacts. According to the team, the spherules were created when asteroids crashed into the Earth, vaporizing rock that expanded into space as a giant vapor plume. Small droplets of molten and vaporized rock in the plume then condensed and solidified, falling back to Earth as a thin layer.  These particles...

2012-04-03 04:11:06

In a world first, the sounds of Mars and Venus are revealed as part of a planetarium show in Hampshire this Easter. Despite many years of space exploration, we have no evidence of the sound of other planets. While most planetary probes have focused on imaging with cameras and radar and a couple have carried microphones, none of them successfully listened to the sound of another world. Now, a team from the University of Southampton, led by Professor Tim Leighton, has the answer. Using...

Venus, Mars Top Stargazing Attractions For April
2012-04-01 05:35:25

Venus's rendezvous with the Pleiades star cluster and the increasing prominence of Mars in the east-southeast part of the sky mark two of the highlights for stargazers to enjoy during the month of April. According to Joe Rao of Space.com, Earth's so-called sister planet will be visible near the star cluster known as the Seven Sisters in the west-northwestern part of the sky on Tuesday, April 3. Venus will pass within a half-degree to the south of the Pleiades that evening, Rao said. The...

2012-03-29 11:51:03

Fossilized raindrop impressions have shown scientists evidence of greenhouse gases in Earth´s early atmosphere. This means between 2 and 4 billion years ago, the sun may have burned 30% less brightly than it does now. “Because the sun was so much fainter back then, if the atmosphere was the same as it is today the Earth should have been frozen,” says Sanjoy Som, a postdoctoral researcher at NASA´s Ames Research Center. While the Earth should have been...

Earth-Like Planets Very Common In Red Dwarf Systems
2012-03-28 10:44:51

The astronomers from that European Space Observatory have helped reveal that rocky planets not much bigger than Earth are very common in the habitable zone around faint red stars. A team of astronomers estimates there are tens of billions of these rocky planets in the Milky Way galaxy alone, and about one hundred in the Sun's neighborhood. The team used observations with the HARPS spectrograph on the telescope at ESO's La Silla Observatory in Chile. They had been searching for...

Super-Earth Transfer Of Life Unlikely
2012-03-22 04:04:10

While scientists believe conditions suitable for life might exist on the so-called "super-Earth" in the Gliese 581 system, it's unlikely to be transferred to other planets within that solar system. "One of the big scientific questions is how did life get started and how did it spread through the universe," said Jay Melosh, distinguished professor of earth and atmospheric sciences. "That question used to be limited to just the Earth, but we now know in our solar system there is a lot of...

Latest Terrestrial planets Reference Libraries

2004-10-19 04:45:42

Terrestrial Planet -- A terrestrial planet is a planet that is mostly composed of silicate rocks and may or may not have a relatively thin atmosphere. The term is derived from the Greek word for Earth, so an alternate definition would be those planets that are more Earth-like than not. Terrestrial planets are very different from gas giants, which may or may not have solid surfaces and are composed mostly of hydrogen and helium in various physical states. Only one terrestrial planet,...

2004-10-19 04:45:40

The Planet Venus is the second planet from the sun. It is often called the evening star or morning star and is brighter than any object in the sky except the sun and the moon. Because its orbit lies between the sun and the orbit of the earth, Venus passes through phases like those of the moon, varying from a large bright crescent when the planet is near inferior conjunction (nearest the earth) to a smaller silvery disk when it is at superior conjunction (farthest from the earth). Since...

2004-10-19 04:45:40

The Planet Mercury -- in astronomy, nearest planet to the sun, at a mean distance of 36 million mi (58 million km); its period of revolution is 88 days. Mercury passes through phases similar to those of the moon as it completes each revolution about the sun, although the visible disk varies in size with respect to its distance from the earth. Because its greatest elongation is 28, it is seen only for a short time after sunset or before sunrise. Since observation of Mercury is...

2004-10-19 04:45:40

The Planet Mars -- in astronomy, 4th planet from the sun, with an orbit next in order beyond that of the earth. Physical Characteristics Mars has a striking red appearance, and in its most favorable position for viewing, when it is opposite the sun, it is twice as bright as Sirius, the brightest star. Mars has a diameter of 4,200 mi (6,800 km), just over half the diameter of the earth, and its mass is only 11% of the earth's mass. The planet has a very thin atmosphere consisting...

2004-10-19 04:45:40

Earth -- in geology and astronomy, fifth largest planet of the solar system and the only planet definitely known to support life. Gravitational forces have molded the earth, like all celestial bodies, into a spherical shape. However, the earth is not an exact sphere, being slightly flattened at the poles and bulging at the equator. The equatorial diameter is c.7,926 mi (12,760 km) and the polar diameter 7,900 mi (12,720 km); the circumference at the equator is c.24,830 mi (40,000 km)....

More Articles (5 articles) »
Word of the Day
  • A bookseller; now, especially, a dealer in rare and curious books.
This word comes from a Greek phrase meaning 'book seller.'