Sunday, March 31, 2013
New techniques for dating rocks confirmed that a chain of giant volcanic eruptions 200 million years ago caused the sudden extinction of half the species now inhabiting the Earth.
The result of the research provides far more precise date of when this occurred, for 564 000 201 000 000 000 years ago, in the Triassic extinction event known as Final, or fourth mass extinction, when the eruption of a volcano chain revolutionized the climate by emitting large amounts of carbon dioxide into the atmosphere, according to the report in the journal Science.
Two years ago, gave scientists reported in the journal Science the existence, 200 light years away from Earth, a planet with two suns, like the fictional world Tatooine , home of the young Skywalker of Star Wars. Later, astronomers found new examples of similar worlds and suggested that there may be millions of them. Now, an international team of scientists led by Philippe Delorme space, Joseph Fourier University in Grenoble, France, has taken what may be the first photograph of a planet orbiting two suns.
Saturday, March 30, 2013
The universe is very old - well 13.8 billion years. Our home galaxy, the Milky Way, is also very old - some of their stars bring it to more than 13 billion years (eso0425).
Nevertheless, there is much going on: New objects are created, others are destroyed. In this picture you can see some of the newcomers: young stars that make up the star cluster NGC 2547.
But how young these cosmic youngsters really are? Although her exact age remains uncertain,
Friday, March 29, 2013
President of RSC Energies of Vitaly Lopota said that through the threat of asteroids and comets can handle only super-heavy carrier rocket. It can be created based on existing missile components from the program "LV Energy." "This launch vehicle able to deliver and deploy components of the system to detect and track (if necessary - and thermonuclear charge) to a dangerous space objects," - said the president of the corporation.
Thursday, March 28, 2013
Scientists have put forward a new theory of how can grow giant stars.
According to scientists, the young stars can grow to unusually large sizes, exceeding the size and mass of our sun 10 times. Such a huge and massive size of these stars can afford in the event that they are surrounded by a cocoon of old stars. These old stars and continually nurture its gas, like a powerful fuel, the young star that is in the process of its formation.
International Astronomical Union (International Astronomical Union, IAU) approved the names of the nine craters Mercury.
The choice of names was associated with the names of famous artists, writers, musicians, which is in accordance with the rules established for the geological structures IAU planet.
Wednesday, March 27, 2013
When NASA's twin probes GRAIL mission scientists were deliberately destroyed, sent spacecraft into collision with the lunar surface in December, complex scientific instruments Orbiter Lunar Reconnaissance Orbiter (LRO) were in a good position to monitor the effects of this collision. In escaped after the explosion of a gas jet tool Lyman Alpha Mapping Project (LAMP),
Previously it was thought that supernova typically have one of two main scenarios. But a team of astronomers, including Wendy Friedman, Mark Phillips and Eric Persson of Carnegie, reported the discovery of a new type of supernova, called type 1ah.
Astronomers used to divide supernova into two main categories: type 1a supernova and supernova occurring core-collapse. Supernova, accompanied by collapse of the core,
Astronomer studies the possibility of the origin of cyclones over the surface of the largest moon of Saturn - Titan, indicating some similarities to the weather with the Earth. Saturn's moon Titan, whose surface is so cold that methane falls on her in the form of rain in the summer raises its temperature so that makes it possible for cyclone zipping above the seas. Marine evaporation is able to generate enough energy to produce wind, moving at a speed of 70 kilometers per hour. However, the formation of cyclones totally depends on what is the chemical composition of the seas of Titan.
Tuesday, March 26, 2013
As a new study shows, a huge cyclone formed over the south pole of Venus, is divided into parts, and then going back into one.
Observation of the planet for the past six years has allowed concluding that the "long-lived" storm is constantly evolving. This fact led to a greater number of issues related to the unusual weather conditions on the planet.
In 2006, when the spacecraft ESA "Venus Express (Venus Express, VEX) came to Venus (this was in April), then over the South Pole was seen resembling a cyclone structure,
Moving away from the forced hibernation, the rover “Curiosity " immediately proceeded to new research. He even made a fence of new samples of Martian soil and made it into powder with its onboard scientific instruments. Now, the rover is ready to perform a complete chemical and spectral analysis of the obtained powder and send the results to Earth at the Jet Propulsion Laboratory (NASA).
According to the NASA, private space capsule "Dragon" now returns home.
Today is Tuesday, March 26 commercial space capsule "Dragon" (Dragon) is returned to the International Space Station to Earth. It splashed down in the Pacific Ocean in 396 kilometers from the coast of California from 1210 kilograms of cargo on board. Among the cost will be more unnecessary equipment to the ISS, space debris, the results of various research, and more.
Spacecraft "Mars Express" continues to search for treasure on Mars.
Space research probe "Mars Express" spent almost ten years researching the surface of the Red Planet. The archived of the missions a lot of amazing photos of some Martian region.
If a little digging in the archives, you'll find truly amazing and unique shots Martian surface. One of these pictures was specifically found in the archives and presented to the public. It comes as a picture of one of the Martian regions known as Noctis Labyrinthus.
Engineers have almost finished work to eliminate problems in the first aircraft Airbus A380, subjected constantly evolving on the issue of the strength of wing ribs. Approximately half of the 100 Airbus A380 aircraft currently operated with a time limit for the maximum number of cycles set by the European aviation sertifikantom specific center section.
Monday, March 25, 2013
The researchers studied the features of the collision of giant planets with each other and found that such collisions may occur in our galaxy often.
A team of scientists from the Institute for Nuclear Research of the Russian Academy of Sciences headed by VI Dokuchaev conducted a study of indications accompanying the collision of giant planets. The researchers found that the number of collisions in our Milky Way galaxy is 0.01 to one collision per year.
Astronomers from the Arman Observatory, United Kingdom, led by Apostolos A. Christou reported finding a new family of Trojan asteroids of Mars.
The orbital evolution of the detected lasted about 100 million years, scientists say, and the orbits of the asteroids orbit recall now the largest of the known Trojan asteroids of Mars Eureka 5261. This group forms a cluster within a region of space, which is usually the most stable are the Trojan asteroids.
Sunday, March 24, 2013
Witness of the flash of light observed in the sky beyond the Atlantic Coast of the U.S., recommend that the reason of these outbreaks was likely a single meteor; officials said the U.S. space agency. Witnesses described his heavenly fireworks, not skimping on the comparison.
"Judging from the brightness, we are dealing with something as bright as the full Moon, - said Bill Cooke of NASA's Laboratory meteoric environment on Friday. - Our stone entered the atmosphere somewhere in the north-east. "
Space object which wiped out the dinosaurs 65 million years ago, it might be a comet impact, not an asteroid, a new study indicates.
180-kilometer Chicxulub crater, located in Mexico, was established as a result of the collision, which led to the extinction of the dinosaurs and about 70 percent of all species on earth, according to many scientists.
Scientists from Europe and the U.S. to confidently move promote in their plans to make a deliberate collision of a spacecraft with a giant asteroid in 2022 to look into the depths of such visitations.
Ambitious European mission Asteroid Impact and Deflection Assessment, or AIDA, consisting of two satellites (one of which will be built by scientists from the U.S., and the second - the European Space Agency), is scheduled to start a three-year journey to the asteroid Didymus and his companion. Didim not dangerous for the Earth, so it is well suited for this kind of research, scientists said the mission at the 44th Annual Conference of the moon and planets, on Tuesday, March 19.
During the two years of its location in orbit around Mercury, NASA's MESSENGER spacecraft has made more than 150,000 images of the planet closest to the Sun, the solar system, first giving us the opportunity to think about the extremely rough, parched surface of the planet in feature. But not all areas on Mercury look stern and sinister: it also has a smooth side, you can see on the picture, published today.
Here we see the smooth sides and bottom Mercurian irregular depressions in high definition.
Saturday, March 23, 2013
The next generation of rocket company SpaceX is prepared to fly, and it was probably he will be used to launch commercial spacecraft, which will take place this summer, the company announced Wednesday.
Merlin 1D engine was declared ready for flight once it passed the ignition for a total of 33 minutes for the 28 different tests on the premises for the development of rocket company SpaceX in McGregor, Texas.
Friday, March 22, 2013
The planets in the next month will worsen due to the Mars mission. Mars will be almost exactly behind the Sun when viewed from Earth. The sun can easily interrupt the broadcast between two planets when the three celestial bodies line up in one line. To prevent incorrect signaling, dispatchers from NASA Jet Propulsion Laboratory intend to suspend sending any commands to all the Martian rovers and orbiters in April. Transmission from Mars to Earth, too, will be kept to a minimum.
Thursday, March 21, 2013
Space Telescope European Space Agency's XMM-Newton helped discover a star and a black hole that address near each other at high speed, making one revolution in just 2.4 hours - which is an hour shorter than the orbital period of the previous record holder.
A black hole in the close pair, known as the MAXI J1659-152, at least three times as massive as the Sun, while the mass of its companion star - a red dwarf star - only 20% of the solar mass.
Monday, March 11, 2013
Because of the awaiting solar storm on March 7 NASA temporarily balanced operations on the Martian surface rover Curiosity Mission Mars Science Lab (MSL). Currently, the rover mission scientists have presumed from the "sleep" mode, because the power of the solar storm was much lower than expect.
NASA has taken protection in view of the fact that a large coronal mass ejection, presumably, was to reach Mars in a few days, from March 7, the researchers say.
Sunday, March 10, 2013
Based on information get together by Mars research orbiter Mars investigation Orbiter scientists were able to create a three-dimensional map of water channels of the red planet.
The studies experts have finished that the depth of the Martian channels formed during the global flood, about twice as much as previously thought. Full version of the work of scientists published in the journal Science.
Saturday, March 9, 2013
The Space Research Institute of the Netherland thinks it may be possible to identify signs of alien life within the next 25 years, without the need for a space mission.
A new method
Astronomers have speculated for decades about how observations of exoplanets could provide evidence of extraterrestrial life.
The XMM-Newton space observatory agree to us to look surrounded by the covering fuzzy Eskimo Nebula, instructive a warm face gas to 2 million degrees Celsius.
This image is a amalgam of data collected by XMM-Newton (blue) and the Hubble Space Telescope (red and green), and highlights the complex nature of terrestrial nebula, the swan song of stars like our Sun .
When these stars mature, they begin to shed their outer layers to expose its core, a high temperature.
Friday, March 8, 2013
The new model is based on computer simulations of collisions between asteroid Vesta separated and a couple of rocks from 32 km in diameter in the last billion years. The results suggest that cosmic impacts caused Vesta's crust to melt and then re-form, with its thicker crust than can be explained by typical rock layers, the scientists said.
Collisions carved two large impact craters on the surface of Vesta. The oldest, Veneneia, formed about 2,000 million years. With a diameter of 395 km, the crater covers nearly three quarters of the diameter of Vesta Ecuador. Covering 90% of the diameter of Vesta, is one of the largest craters in the Solar System.
Astronomers explore the scale of the universe by first calculating the distance to nearby objects, using them as reference points (standard candles). The close observation of a rare type of double star has allowed a team of astronomers presume a much more accurate value for the distance to LMC: 163,000 light years.
An international Astronomers team lead by Sascha Quanz from ETH Zurich in Switzerland examined the gas and dust disk around the young star HD 100546, which is located at a distance of only 335 light years in relative closeness to our solar system. The researchers were surprised when they found evidence of a planet that - surrounded in the disk of theme around the young star - is still in the development process. This possible planet would be a gas giant similar to Jupiter in our solar system.
Thursday, March 7, 2013
Spaceship Dragon, built by a private company SpaceX, safely reached the International Space Station - even though a day later than expected.
After the launch of the ship begin to experience serious problems: three of its four engines orientation refused to work because of a failure in the fuel system, and the operators had to spend several hours trying to revive them. It ended well, and the "Dragon", though late, but made friends with the ISS was successfully "caught" by the robot arm Canadair and docked to the station.
Wednesday, March 6, 2013
Newly exposed comet will pass very close to Mars. It is possible and collision.
Comet C/2013 A1 - the first of astronomers open this year. Its orbit is estimated to take place very close to Mars in October 2014 a comet fly only 37 000 km from the Red Planet. This in itself would be a significant astronomical event,
Tuesday, March 5, 2013
Observations with the infrared Herschel Space Telescope discovered the star Alpha Centauri A strange "cold bed", exactly the same as that of our sun.
Our star is composed of six layers: the core, where fusion reactions occur, areas of radioactive transfer, convective zone, photosphere, chromospheres and corona.
Sunday, March 3, 2013
Last Thursday (February 28) fails, in which the rover operators were forced to switch from the main system to a back-in and break up research Curiosity.
On Saturday, the rover out of the "safe mode” and on Sunday again mobilized antenna with high gain. One of the options for further work, the operator in question Curiosity,
The Beijing University of Aviation and Cosmonautics completed a 370-day experiment to simulate the lives of people on the moon, settin...
United Launch Alliance Company successfully conducted the launch of a rocket Delta IV , which brought with it the WGS-9 satellite for mi...
The following month, the NASA spacecraft "Cassini" will make his 126th and final passage by Saturn's largest moon Titan . ...
The spacecraft SpaceX Dragon US company made a successful soft landing on Earth, splashed down off the coast of southern California nea...