Researchers used NASA's THEMIS spacecraft to track energetic particles in Earth's magnetic atmosphere during a substorm, gaining insights into their origin and behavior. The study supports the betatron acceleration model, which explains how electrons gain energy from changing magnetic fields far from the reconnection site.
Tropical Storm Bianca intensified into a storm just off the northern coast of Western Australia, with NASA's TRMM satellite capturing moderate to heavy rainfall rates. The storm is expected to curve to the southeast and weaken as it enters cooler waters.
Tropical Depression Anthony, weakened but still forecasted to strengthen, is moving west toward Queensland, Australia. The storm's convection is currently weak, but may change in the next 24-36 hours as it moves into a more favorable area.
NASA's Aqua satellite captured visible and infrared images of Cyclone Wilma, revealing a clearly visible eye. The storm had strengthened overnight and showed strong convection around its center.
NASA's Aqua satellite captured an infrared image of Tropical Storm 10S, showing very cold clouds and powerful thunderstorms over the Southern Indian Ocean. The storm quickly strengthened into a tropical storm and affects Western Australia's northern coast.
Astronomers using data from NASA's Swift satellite have found a largely unseen population of black-hole-powered galaxies, accounting for at least one-fifth of all active galaxies. The discoveries were made by analyzing X-ray emissions and finding that these heavily shrouded black holes are extremely faint and difficult to detect.
Glory will measure aerosols and solar energy in Earth's atmosphere to refine climate models. The satellite carries two primary instruments: Aerosol Polarimetry Sensor (APS) and Total Irradiance Monitor (TIM), which will collect data for at least three years.
A team of researchers found excess left-handed isovaline in a wider range of carbon-rich meteorites, suggesting conditions on asteroids favored the creation of left-handed amino acids. Liquid water appears to be key to this process, and its amplification may have perpetuated a bias toward left-handed life.
Tropical Storm Zelia forms in the South Pacific after strengthening from System 94P; NASA's TRMM satellite captures heavy rainfall on its northwestern and southwestern sides. The storm is expected to continue moving southeastward, strengthen into a cyclone, and impact New Caledonia with winds and rains.
Tropical Storm Vania brought heavy rainfall to southeastern New Caledonia, affecting residents of Norfolk Island with gusty winds and moderate to heavy rains. The storm's center was located near Noumea on January 14, before weakening and dissipating in the South Pacific Ocean.
Tropical Storm Vince is expected to U-turn and take a westward track away from Western Australia due to high pressure. The storm's maximum sustained winds were down to 39 mph on January 14, with moderate vertical wind shear affecting its organization.
NASA's new satellite data confirms a strong La Niña event in the eastern Pacific, with record-breaking rainfall in Australia and significant impacts on global climate. The La Niña effect is being felt worldwide, influencing ocean currents and heat storage.
The TRMM satellite provided a 3-D image of Vania with thunderstorms reaching 15 kilometers high, while Aqua satellite infrared data showed strongest convection over open waters. Tropical Storm Vania is forecast to move south and brush New Caledonia before weakening due to wind shear and cooler sea temperatures.
A low-pressure system with signs of tropical development has been observed in the Coral Sea, northeast of Australia, according to NASA's Aqua satellite. The system, known as System 94P, is expected to track towards Port Moresby, Papua New Guinea, over the next couple of days.
Astronomers have discovered unexpected changes in the Crab Nebula's X-ray emission, revealing it is not as stable as previously thought. The findings indicate the nebula has brightened and faded by up to 3.5% a year since 1999.
Global surface temperatures in 2010 tied 2005 as the warmest on record, with the next warmest years being statistically tied for third warmest year. The climate has warmed by approximately 0.36F per decade since the late 1970s.
Scientists using NASA's Fermi Gamma-ray Space Telescope have detected beams of antimatter produced above thunderstorms, a phenomenon never seen before. The detection is attributed to terrestrial gamma-ray flashes (TGFs) associated with lightning and the spacecraft's ability to magnetically connect with distant storms.
Scientists observed temperatures of millions of degrees in gas jets, known as spicules, which could contribute to coronal heating. The discovery offers a new framework for understanding the sun's high atmosphere and its role in space weather.
The GOES series of satellites provided critical weather monitoring services in 2010 and 2011, tracking severe storms, hurricanes, and blizzards. The satellites captured stunning images of weather systems, including the Pineapple Express and a Christmas weekend blizzard, helping to inform travel decisions.
A tropical cyclone system, System 98S, is bringing heavy rainfall and gusty winds to the northwestern coast of Western Australia. The NASA TRMM satellite has captured images of moderate to heavy rainfall in the system, with areas near Kununurra experiencing light to moderate rainfall.
SOHO has become the single greatest comet finder of all time, with over 2,000 comets discovered. The spacecraft was not designed for this purpose, but its cameras have proven effective in spotting comets due to their ability to block out the sun's brightness.
A powerful low-pressure system brought significant snowfall to New England, with some areas receiving over a foot of snow. The GOES-13 satellite captured an image of the storm's center off the Massachusetts coast, showing the extent of the blizzard conditions.
System 91S made landfall in Western Australia on Dec 16 with a large area of strong thunderstorms and heavy rainfall. The remnants of the low continued to bring rain to inland areas until Sunday December 18, causing flash flooding and rising streams.
The Lunar Reconnaissance Orbiter is producing the most accurate and complete map of the moon's complex landscape, revealing contours and slopes with precision. The dataset is being used to study lunar processes, including crater density and resurfacing, as well as the formation of multi-ring basins.
A total lunar eclipse will be visible to sky watchers across North America on December 21, coinciding with the winter solstice. The eclipse will last approximately three hours and twenty-eight minutes, with totality lasting seventy-two minutes.
New NASA research reveals a significant increase in plant consumption globally, driven by growing populations and economic development. The global demand for land-based materials has risen from 20% to 25% over the past decade, with per capita consumption increasing in some regions.
Researchers at NASA's Goddard Space Flight Center analyzed 42 northeastern US cities, finding that densely-developed cities with compact cores produce strong urban heat islands. The study also showed that forested regions and dark city infrastructure contribute to the development of heat islands.
A NASA computer modeling effort found that increased plant growth in a world with doubled atmospheric carbon dioxide levels could create a cooling effect, reducing future global warming. The model predicts a -0.3 degrees Celsius globally and -0.6 degrees C over land.
System 94B is creating heavy rainfall near India's southeastern coast with strong wind shear pushing convection northwest of its center. Heavy rain has been reported in the state of Tamil Nadu, with intense storms producing over 50mm/hr rainfall.
Saturn's southern hemisphere emits more energy than its northern one, with variations seen in the planet's seasons and years. The Cassini CIRS instrument reveals Saturn is not losing power evenly, providing a new understanding of the planet's internal heat source.
The telescope discovered two gamma-ray-emitting bubbles that span 50,000 light-years north and south of the galactic center
Cyclone Jal's remnants have been spotted in the Arabian Sea, with NASA monitoring their movement. The low-pressure area showed signs of circulation and convection on Nov. 9, indicating a potential for regeneration.
Tropical Cyclone Jal made landfall in east central India, bringing heavy rainfall and flooding. The storm's remnants are now moving into the northeastern Arabian Sea, prompting forecasts of possible regeneration.
The GOES-13 satellite is monitoring a cold front approaching the remnants of Hurricane Tomas, which has lost its tropical characteristics and now resembles a nor'easter. The satellite imagery shows the cold front as a line of clouds east of the US East coast, with Tomas' remnants appearing as a tight swirl of clouds near Bermuda.
The NASA Thermosphere Ionosphere Mesosphere Energetics and Dynamics (TIMED) mission has been extended for the fourth time to study the upper atmosphere. The mission will focus on differentiating between human-induced and naturally occurring changes in this atmospheric region, allowing scientists to understand long-term trends.
Hurricane Tomas strengthened to hurricane status, affecting Hispaniola and eastern Cuba. The GOES-13 satellite provided a visible image of the storm's extensive cloud cover on Nov. 5.
Tropical Storm Tomas is intensifying due to strengthening convection and colder cloud tops detected by NASA's infrared satellite imagery. The storm is expected to bring heavy rainfall and life-threatening flashfloods to several Caribbean islands.
Tropical Storm Tomas has weakened into a tropical depression due to decreased convection and increased wind shear. Forecasters predict a re-intensification of the storm into a hurricane before it reaches Haiti late Friday.
Scientists and engineers are using supercomputer models to simulate the universe's first stars, galaxies, and planets. Custom tools transform vast data into cinematic experiences, revealing insights into cosmic evolution and star formation.
NASA's Aqua satellite captured an infrared image of Tropical Storm Anggrek's cold thunderstorms tightly circling its center. The storm is expected to steadily weaken and dissipate as it encounters cooler waters and stronger wind shear.
The TRMM satellite tracked Tomas' center of circulation reforming on Nov. 3 after being downgraded to a tropical depression the previous day. Maximum sustained winds remain at 35 mph as Tomas is expected to strengthen into a tropical storm, producing heavy rain accumulation in Haiti.
Tropical Storm Tomas is intensifying under favorable conditions, with convection increasing and wind shear weakening. The National Hurricane Center forecasts Tomas will continue strengthening until Friday, potentially becoming a hurricane and threatening Haiti.
A new satellite-based global map of mangrove forests reveals they make up less than previously thought, sparking motivation for stronger conservation efforts. The map also shows 75% of the world's mangroves are concentrated in just 15 countries.
The A-Train constellation of satellites, including Aqua, CloudSat, CALIPSO, and Aura, observe the same path of Earth's atmosphere and surface at various wavelengths. Multi-sensor measurements from the A-Train have helped scientists understand unexpected factors contributing to Arctic sea ice loss in 2007.
Cyclone Giri made landfall in Burma as a Category Four cyclone, bringing powerful winds and heavy rainfall. The storm's eye was approximately 20 nautical miles wide, with wind speeds reaching up to 155 mph.
Typhoon Megi is forecast to make landfall in southeastern China late at night on October 22 as a Category One typhoon. NASA satellites have been monitoring the storm's rainfall, changing cloud cover, and weakening eye, which weakened due to wind shear.
Tropical Storm Richard is expected to intensify in the western Caribbean before making landfall, bringing maximum storm totals of 5-7 inches of rain and potentially flash flooding and mudslides. Residents in eastern Honduras, Guatemala, Belize and Mexico's Yucatan Peninsula are bracing for its impacts as it approaches
System 99L is showing increased organization in the Caribbean Sea, with improved cloud structure and rainfall patterns. Heavy rainfall is expected for the Cayman Islands and Jamaica over the next couple of days.
Typhoon Megi is intensifying in the South China Sea due to high clouds filled with ice creating heavy rainfall. The storm's maximum sustained winds reached 110 knots (126 mph) near Hong Kong, China.
NASA has formed a single systems engineering organization for its James Webb Space Telescope, combining Northrop Grumman's expertise with NASA's mission-level decision-making. The new team aims to streamline communication and decision-making, reducing costs and meeting the launch goal with minimal risk.