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Latest Terrestrial planets Stories

Venus May Be Slowing Down
2012-02-11 04:02:58

[ Watch a Venus Animation ] ESA´s Venus Express spacecraft has discovered that our cloud-covered neighbor spins a little slower than previously measured. Peering through the dense atmosphere in the infrared, the orbiter found surface features were not quite where they should be. Using the VIRTIS instrument at infrared wavelengths to penetrate the thick cloud cover, scientists studied surface features and discovered that some were displaced by up to 20 km from where they should be...

Astronomers Spot Fourth Potential Habitable Planet
2012-02-03 09:41:48

An international team of astronomers have discovered a potentially habitable planet 22 light years away orbiting a nearby star, reports The Telegraph. Scientists, led by Carnegie´s Guillem Anglada-Escudé and Paul Butler, discovered the triple star system with a planet orbiting one of the stars, clearly within the habitable zone, where its neither too hot nor too cold, making it suitable for liquid water to be present on the surface. The host star has a different makeup...

2012-02-02 14:04:22

An international team of scientists led by Carnegie's Guillem Anglada-Escudé and Paul Butler has discovered a potentially habitable super-Earth orbiting a nearby star. The star is a member of a triple star system and has a different makeup than our Sun, being relatively lacking in metallic elements. This discovery demonstrates that habitable planets could form in a greater variety of environments than previously believed. Their work will be published by the Astrophysical Journal...

Image 1 - Models Reveal That Vesta Is Likely Cold And Dark Enough For Ice
2012-01-26 05:40:12

Though generally thought to be quite dry, roughly half of the giant asteroid Vesta is expected to be so cold and to receive so little sunlight that water ice could have survived there for billions of years, according to the first published models of Vesta's average global temperatures and illumination by the sun. "Near the north and south poles, the conditions appear to be favorable for water ice to exist beneath the surface," says Timothy Stubbs of NASA's Goddard Space Flight Center in...

NASA Says UFO Seen On Video Is Actually Trick Of Light
2012-01-20 06:00:31

NASA scientists used the laws of physics on Thursday to publicly debunk conspiracy theorists that claim the space agency is engaging in an elaborate UFO cover-up scheme. The controversy stems from a bizarre, triangle shaped objected seen on video captured December 27 -29 by NASA´s STEREO-B spacecraft -- one of two probes parked on either side of the sun which, together, give a 360-degree view of the inner solar system. The alien hunters say the footage shows Venus, Earth and, on...

Earth's Massive Extinction: The Story Gets Worse
2012-01-08 05:31:32

New finding on mercury-volcanic link could re-write history on past annihilations Scientists have uncovered a lot about the Earth´s greatest extinction event that took place 250 million years ago when rapid climate change wiped out nearly all marine species and a majority of those on land. Now, they have discovered a new culprit likely involved in the annihilation: an influx of mercury into the eco-system. “No one had ever looked to see if mercury was a potential culprit....

Image 1 - First Ever Direct Measurement Of The Earth's Rotation
2011-12-23 05:35:03

Pinpointing the orientation of the Earth's axis using the world's most stable ring laser The Earth wobbles. Like a spinning top touched in mid-spin, its rotational axis fluctuates in relation to space. This is partly caused by gravitation from the sun and the moon. At the same time, the Earth's rotational axis constantly changes relative to the Earth's surface. On the one hand, this is caused by variation in atmospheric pressure, ocean loading and wind. These elements combine in an effect...

Water On Mars Could Mean The Planet Is Habitable
2011-12-12 09:01:24

Scientists from the Australian National University have found that “large regions” of the Red Planet could actually sustain terrestrial life. The results are based on the scientists´ findings that extensive regions of the sub-surface of Mars could contain water and be at comfortable enough temperatures to support at least microbial life. In the study -- An Extensive Phase Space for the Potential Martian Biosphere -- published today in the Astrobiology Journal,...

Mysterious Object Floating Past Mercury?
2011-12-09 05:28:46

A NASA telescope has revealed a gigantic object the size of a planet floating around Mercury, leading some to believe it could be a UFO. The object appears in a video sequence of images of a coronal ejection from the Sun.  As a flare crosses Mercury, a huge round object appears next to it. YouTube user siniXster, who uploaded the video, says in his commentary that he believes it is a ship. "It's cylindrical on either side and has a shape in the middle. It definitely looks like a...

Dawn Reveals Vesta's 'Color Palette'
2011-12-07 05:46:54

[ Watch the Video ] Vesta appears in a splendid rainbow-colored palette in new images obtained by NASA's Dawn spacecraft. The colors, assigned by scientists to show different rock or mineral types, reveal Vesta to be a world of many varied, well-separated layers and ingredients. Vesta is unique among asteroids visited by spacecraft to date in having such wide variation, supporting the notion that it is transitional between the terrestrial planets -- like Earth, Mercury, Mars and Venus --...


Latest Terrestrial planets Reference Libraries

6_ca87660286bca43fbd7e3f90543baaa72
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,...

4_eccd202c9b173d8cc2bddcaa6629203b2
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...

4_9748baf12fb7dd89aa4315d7732196cd2
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...

4_81f631e16d8d1d35870c180f342c83a12
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...

4_33609f8ebef994f54be143abe0bef9f42
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)....

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