sexta-feira, 30 de janeiro de 2015
NASA WEB ·Helicopter Could be 'Scout' for Mars Rovers Getting around on Mars is tricky business. Each NASA rover has delivered a wealth of information about the history and composition of the Red Planet, but a rover's vision is limited by the view of onboard cameras, and images from spacecraft orbiting Mars are the only other clues to where to drive it…
NASA WEB ·NASA and ATK Complete Installation of World's Largest Solid Rocket Motor for Ground Test NASA and ATK company have completed installing the first Space Launch System (SLS) booster qualification motor, QM-1, in a specialized test stand in Utah. The largest solid rocket motor ever built for flight, QM-1 is now being prepared for its...
NASA WEB ·SOHO and Hinode Offer New Insight Into Solar Eruptions The sun is home to the largest explosions in the solar system. For example, it regularly produces huge eruptions known as coronal mass ejections – when billions of tons of solar material erupt off the sun, spewing into space and racing toward the very edges of the solar system. Scientists know that…
NASA WEB · Comet 67P/Churyumov-Gerasimenko 'Pouring' More Water Into Space There has been a significant increase in the amount of water "pouring" out of comet 67P/Churyumov-Gerasimenko, the comet on which the Rosetta mission's Philae lander touched down in November 2014. The 2.5-mile-wide (4-kilometer) comet was releasing the earthly equivalent of 40 ounces (1.2 liters) of…
NASA WEB ·Death of a Dynamo: A Hard Drive from Space Hidden magnetic messages contained within ancient meteorites are providing a unique window into the processes that shaped our solar system, and may give a sneak preview of the fate of the Earth’s core as it continues to freeze. The dying moments of an asteroid’s magnetic field have been successfully…
NASA WEB · Gullies on Vesta Suggest Past Water-Mobilized Flows Protoplanet Vesta, visited by NASA's Dawn spacecraft from 2011 to 2013, was once thought to be completely dry, incapable of retaining water because of the low temperatures and pressures at its surface. However, a new study shows evidence that Vesta may have had short-lived flows of water-mobilized m…
NASA WEB ·Maneuver Successfully Delays MESSENGER's Impact, Extends Orbital Operations NASA's MESSENGER mission controllers at the Johns Hopkins University Applied Physics Laboratory (APL) in Laurel, Md., successfully conducted a maneuver Wednesday designed to raise the spacecraft's minimum altitude sufficiently to extend orbital operations and delay the probe's inevitable impact onto…
NASA WEB ·Oldest Planetary System Discovered, Improving the Chances for Intelligent Life Everywhere Using data from the Kepler space telescope, an international group of astronomers has discovered the oldest known planetary system in the galaxy – an 11 billion-year-old system of five rocky planets that are all smaller than Earth. The team says this discovery suggests that Earth-size planets have formed throughout most of the Universe’s 13.8-billion-year history, increasing the possibility for the existence of ancient life – and potentially advanced intelligent life — in our galaxy.
NASA WEB · Are Asteroids the Future of Planetary Science? I don’t think I ever learned one of those little rhymes – My Very Educated Mother Just Served Us Nine Pizzas – to memorize the order of the planets, but if I had, it would’ve painted for me a minimalist picture of the solar system. (Side question: what is my Very Educated Mother serving now that we only have Dwarf Pizzas?) After all, much of the most exciting work in planetary science today happens not at the planets, but around them.
|NASA TV Coverage Reset for Launch of SMAP Earth Mission|
NASA's Soil Moisture Active Passive mission (SMAP) launch from Vandenberg Air Force Base, California, now is scheduled for 6:20 a.m. PST (9:20 a.m. EST) Friday, Jan. 30, with a three-minute launch window. The launch of the United Launch Alliance/Delta II rocket was scrubbed Thursday due to a violation of upper-level wind constraints. Launch managers have initiated a 24-hour recycle. The weather forecast for this launch window shows a 90 percent chance of favorable conditions.
NASA Television coverage of the launch Friday will begin at 4 a.m. PST.
SMAP will provide high-resolution, space-based measurements of soil moisture and its state -- frozen or thawed -- a new capability that will allow scientists to better predict natural hazards of extreme weather, climate change, floods and droughts, and help reduce uncertainties in our understanding of Earth's water, energy and carbon cycles.
The mission will map the entire globe every two to three days for at least three years and provide the most accurate and highest-resolution maps of soil moisture ever obtained. The spacecraft's final circular polar orbit will be 426 miles (685 kilometers), at an inclination of 98.1 degrees. The spacecraft will orbit Earth once every 98.5 minutes and repeat the same ground track every eight days.
quinta-feira, 22 de janeiro de 2015
Extremely short, sharp flash of radio waves from unknown source in the universe, caught as it was happening A strange phenomenon has been observed by astronomers right as it was happening -- a 'fast radio burst'. The eruption is described as an extremely short, sharp flash of radio waves from an unknown source in the universe. Theories now suggest that the radio wave burst might be linked to a very compact type of object -- such as neutron stars or black holes and the bursts could be connected to collisions or 'star quakes'
NASA WEB · SETI Institute Machines teach astronomers about stars. Astronomers are enlisting the help of machines to sort through thousands of stars in our galaxy and learn their sizes, compositions and other basic traits. The research is part of the growing field of machine learning, in which computers learn from large data sets, finding patterns that humans might not otherwise see.
Machines teach astronomers about stars.
Astronomers are enlisting the help of machines to sort through thousands of stars in our galaxy and learn their sizes, compositions and other basic traits. The research is part of the growing field of machine learning, in which computers learn from large data sets, finding patterns that humans might not otherwise see.
NASA WEB ·Space Shuttle Program A technician surveys the nose gear as space shuttle Atlantis is loaded onto the orbiter transporter vehicle in Orbiter Processing Facility-2 at NASA's Kennedy Space Center in Florida. The shuttle is being prepared for its move from the OPF to the Vehicle Assembly Building during transition and retirement work. Later, the shuttle will be taken to the Kennedy Space Center Visitor Complex where it will go on public display. 10/16/2012
A technician surveys the nose gear as space shuttle Atlantis is loaded onto the orbiter transporter vehicle in Orbiter Processing Facility-2 at NASA's Kennedy Space Center in Florida. The shuttle is being prepared for its move from the OPF to the Vehicle Assembly Building during transition and retirement work. Later, the shuttle will be taken to the Kennedy Space Center Visitor Complex where it will go on public display. 10/16/2012
NASA WEB · Space Shuttle Program Inside Orbiter Processing Facility-2 at NASA’s Kennedy Space Center in Florida, United Space Alliance technicians close space shuttle Atlantis’ midbody door for the final time
Inside Orbiter Processing Facility-2 at NASA’s Kennedy Space Center in Florida, United Space Alliance technicians close space shuttle Atlantis’ midbody door for the final time. The orbiter is undergoing final preparations for its transfer to the Kennedy Space Center Visitor complex targeted for November. The work is part of Transition and Retirement of the remaining shuttle. Atlantis is being prepared for public display at the visitor complex. Over the course of its 26-year career, Atlantis spent 293 days in space during 33 missions. 09/28/2012
NASA WEB ·Telescope To Seek Dust Where Other Earths May Lie The journey to find worlds ripe for life begins in part by following a trail of dust.
quinta-feira, 15 de janeiro de 2015
Veľka hmlovina v Orione (M42) a jej pôvab nebeskej čírosti...(Eduard Boldižár)
NASA WEB ·Curiosidades do Universo Asteroides também podem possuir suas luas. Alguns asteroides são tão grandes que possuem campo gravitacional grande o suficiente para atrair outros corpos celestes. Um exemplo é o asteroide Ida, que possui a sua própria lua, que foi chamada de “Dáctilo”.
NASA WEB ·CNES [Le quiz du mardi] Depuis 1992, les satellites observent la lente montée des océans, qui gonflent en se réchauffant et en recevant l'eau des banquises. Mais à quel rythme nos mers montent-elles ?
NASA WEB ·NASA Goddard All Instruments for NOAA’s GOES-R Satellite Now Integrated with Spacecraft All six instruments that will fly on the NOAA’s Geostationary Operational Satellite – R (GOES-R) satellite have now completed integration onto the spacecraft.
All Instruments for NOAA’s GOES-R Satellite Now Integrated with Spacecraft
All six instruments that will fly on the NOAA’s Geostationary Operational Satellite – R (GOES-R) satellite have now completed integration onto the spacecraft.
The instruments are: the Advanced Baseline Imager (ABI), the Geostationary Lightning Mapper (GLM), the Space Environment In-Situ Suite (SEISS), the Extreme Ultraviolet and X-ray Irradiance Sensors (EXIS), the Solar Ultraviolet Imager (SUVI) and the Magnetometer.
Together, these instruments will offer significant improvements for the observation of both terrestrial weather and space weather that impact life on Earth. The GOES-R series satellites will offer enhanced hurricane track and intensity forecasts, increased severe weather warning lead time, improved solar flare warnings for communications and navigation disruptions, better data for long-term climate variability studies, improved aviation flight route planning, and better monitoring of space weather to improve geomagnetic storm forecasting.