A low pressure area north-northeast of Puerto Rico has been detected by the GOES-13 satellite, located about 460 miles northeast of San Juan, Puerto Rico. The National Hurricane Center gives this system a 20% chance of development into a tropical storm over the next two days before it hits wind shear.
Tropical Depression Errol is weakening due to land-crossing and increasing wind shear, with cloud-top temperatures warming and indicating lower thunderstorm heights. NASA's Aqua satellite captured infrared images showing the depression's reduced convection and expected dissipation in the Southern Indian Ocean.
Researchers use noctilucent clouds as a proxy for atmospheric temperatures, revealing changes in the mesosphere that can affect global weather systems. The clouds' annual formation is influenced by wind circulation patterns between hemispheres.
The GOES-13 satellite captured images of a powerful weather system that triggered severe weather in the southern US, resulting in 243 tornadoes across 13 states. The National Weather Service confirmed EF3 and EF2 tornadoes with wind speeds up to 160mph, causing widespread damage and power outages.
Solar activity has increased significantly after a three-year period of minimal sunspot activity, signaling the start of Solar Cycle 24. The longest recorded period of inactivity began in 2008 and lasted until this year.
Tropical Storm Errol has strengthened overnight and developed into a well-defined center of circulation, with strong thunderstorms and cold cloud tops. The storm is expected to bring heavy rainfall, rough surf, and gusty winds along the northern coast of Western Australia.
Two unique types of mirrors, Primary and Secondary EDUs, have arrived at NASA's Goddard Space Flight Center. The mirrors will work together to observe distant galaxies and unexplored planets. The Primary mirror is composed of 18 hexagonal segments, while the Secondary mirror directs light from the Primary mirror to Webb's instruments.
A new supercomputer simulation reveals that the collision of two neutron stars can naturally produce the magnetic structures thought to power short gamma-ray bursts. The study provides the most detailed glimpse of the forces driving some of the universe's most energetic explosions.
Astronomers have never seen a gamma-ray burst as bright and long-lasting as GRB 110328A, which is believed to be associated with a massive black hole. The unusual blast likely arose when a star wandered too close to the central black hole of its galaxy.
The Northwestern Pacific experienced its first tropical cyclone of the new season after March, forming Tropical Depression One W on April 2. The system had strong thunderstorms dropping heavy rainfall and high cloud tops before dissipating by April 4.
The study provides the first direct evidence that million-degree gas clouds are tightly gathered in the cluster's outskirts. The Suzaku images reveal that the outer parts of the Perseus cluster contain too many baryons, contradicting earlier studies and galaxy surveys.
Tropical Cyclone Bune formed from System 99P in the South Pacific Ocean, intensifying into a tropical storm with strong winds and high waves. NASA's Aqua satellite captured infrared images showing the storm's strongest convection on its north side, indicating powerful thunderstorms.
Cyclone Cherono has weakened due to increased wind shear, as captured by NASA infrared satellite imagery. The storm's remnants are now moving away from Mauritius, causing ocean swells and rough surf.
The James Webb Space Telescope's sunshield is a complex system of five layers, each less than half the thickness of paper, working together to create an effective SPF of 1,000,000. The sunshield unfurls like a giant beach umbrella to protect the telescope and instruments from solar heat and light.
The NASA Aqua and TRMM satellites detected heavy rain and strong thunderstorms in Sub-tropical Storm Arani, with cloud top temperatures as cold as -63F. The storm's strongest thunderstorms reached heights of over 14 km above the surface, producing powerful rainfall.
The new Space Weather App allows users to access real-time images and data on solar events, including coronal mass ejections and X-ray outbursts. Users can customize the app to display information of interest, increasing public awareness of space weather.
The Aqua satellite provided near-infrared/visible, infrared, and microwave light views of Ireland on March 3, 2011, capturing mostly clear skies with temperatures near normal for the time of year. The images revealed a cold front approaching from the west and showed navigable rivers extending inland.
Sub-Tropical Storm Arani formed in the South Atlantic, strengthening from a low-pressure area with strong convection and thunderstorms. The storm was characterized by cold temperatures and heavy rainfall off-shore, moving away from Brazil's coast over the next couple of days.
Operation IceBridge studies changes in Arctic polar ice, glaciers, and sea ice to understand the effects of climate change. The mission aims to monitor ice sheet trends and track changes in glacier mass loss.
The LRO mission has released a comprehensive collection of data, including global maps with resolutions as low as 100 meters per pixel. The dataset includes more than 192 terabytes of raw information, equivalent to approximately 41,000 typical DVDs.
Astronomers using NASA's Hubble Space Telescope have recalculated the universe's expansion rate with unprecedented accuracy, ruling out an alternate theory on dark energy. The new measurement reduces uncertainty by 30% and solidifies understanding of cosmic ingredients.
The TRMM satellite measured record rainfall totals of over 300 mm (~11 inches) in Alabama and Mississippi, with eastern US experiencing 50 mm (~2 inches) or more. Flooding was reported from Louisiana to northern New York, with some areas receiving daily records
Satellites like GOES-13 and NASA's Aqua satellite captured images of a huge cold front stretching from Minnesota to Louisiana, generating tornadoes and heavy rainfall. The storm system is expected to bring up to 1 quarter inch more rain to the eastern US, with potential flooding in various areas.
System 96P is developing tropically near Vanuatu, with strong convection and tropical cyclone warnings issued by the government. Infrared satellite imagery shows increased deep convection over a low-level circulation center, but wind shear may weaken the storm.
Tropical Cyclone Atu formed over New Caledonia on February 21, intensifying into a powerful storm with maximum sustained winds of 95 knots before weakening. The cyclone dissipated north of New Zealand by February 25, its life spanning just four days.
NASA's Glory satellite is scheduled to launch on March 4 from Vandenberg Air Force Base, California. The mission will study the effects of sun particles and aerosols on Earth's climate. The launch also carries three CubeSats, designed and built by university students.
The IBEX spacecraft has taken unprecedented photos of the plasma sheet, a complex region surrounding Earth's magnetic field. The images show a plasmoid being ejected into space, providing direct visual evidence of space weather events that can cause auroras and radiation failures.
NASA's Aqua satellite reveals Tropical Storm Dianne is getting organized, with bands of thunderstorms wrapping into the center indicating strengthening. The Joint Typhoon Warning Center expects Dianne to intensify and move south on Feb. 18 while remaining well west of the Australian coast.
At the AAAS annual meeting, NASA researchers presented several key findings, including a new tool to manage protected areas using remote-sensing data from satellites and aircraft. Scientists also discussed the impact of regional nuclear war on global climate and presented discoveries in zero-gravity environments. Additionally, research...
Former Tropical Storm Carlos continues to dump heavy rainfall on Australia's Northern Territory after moving inland. The storm's powerful thunderstorms and cold cloud tops are causing flooding and strong winds.
Tropical Storm Bingiza is maintaining tropical storm intensity with heavy rainfall over the Mozambique Channel, preparing for its second landfall in Madagascar. The storm has weakened from a powerful category 3 cyclone to tropical storm force winds.
Tropical Storms Carlos and Dianne are bringing heavy rainfall and strong winds to Western and Northern Australia, respectively. The storms' cloud tops have reached temperatures as low as -52C, indicating strong convection.
Tropical Storm Bingiza continues to impact western Madagascar, with strong thunderstorms and heavy rainfall reported over the region. The storm's cloud tops reached temperatures as low as -52 degrees Celsius, indicating strong convection and thunderstorms.
Cyclone Bingiza brings most of its rainfall to the Mozambique Channel, with strongest thunderstorms north and west of its center. The storm is expected to re-strengthen due to warm waters and low wind shear in the channel.
Two low-pressure areas, System 99S and System 97S, are developing near the Northern Territory and Western Australia, posing a threat to the region. These tropical systems have consolidated convection patterns and are expected to bring strong winds and heavy rainfall to coastal areas.
A low pressure area known as System 99S is strengthening in the Timor Sea, just 20 miles from Darwin, Australia. Forecasters predict the system will become a tropical depression or storm due to warm ocean surface temperatures.
Tropical Cyclone Bingiza made landfall in northeastern Madagascar, with NASA's Aqua and Terra satellites capturing visible infrared satellite data of the storm's progression. The cyclone brought heavy rainfall and gusty winds to the region.
The NASA National Polar-orbiting Operational Environmental Satellite System (NPOESS) Preparatory Project (NPP) climate/weather satellite is successfully completing flight environmental testing. The five-instrument suite will provide continuity of climate observations and enhance weather forecasting capabilities.
Infrared imagery from NASA's Aqua satellite shows strong convection and thunderstorms in System 96S, indicating potential for strengthening. The system is located in warm sea surface temperatures, ideal for intensification.
NASA has selected seven contractors to receive Aircraft Catalog Blanket Purchase Agreements, allowing access to various airborne platforms for science research and range support. The BPAs offer a range of instrumentation payloads and access to both manned and unmanned aerial platforms.
NASA's Terra satellite captured an image of Tropical Storm Bingiza showing strong thunderstorms and a well-defined low-level circulation center. The storm is intensifying slowly and expected to meander over the next couple of days before strengthening towards central Madagascar.
NASA has extended Phase E of the LROC contract with Arizona State University for approximately two years and $11,368,735. ASU will continue to operate and analyze LROC's science instruments.
Hundreds of 'moon trees,' planted by Apollo 14 astronaut Stuart Roosa in 1971, are living out their lives across the US. As some die or succumb to disease, NASA's Dave Williams is racing against time to find and record the remaining trees' locations.
Researchers using NASA's Cassini spacecraft have discovered thin, wispy clouds of ice particles similar to Earth's cirrus clouds on Titan's atmosphere. These clouds provide valuable insights into the workings of Titan's atmosphere and its one-way cycle that delivers hydrocarbons to the ground.
NASA utilized its TRMM satellite to gather data on the rainfall rates of Tropical Cyclone Yasi as it moved through inland Queensland. The storm dropped moderate to heavy rainfall over an area southeast of the Gulf of Carpentaria, posing flash flooding and damaging winds risks.
Cyclone Yasi made landfall in Queensland, Australia, bringing heavy rainfall, severe winds, and storm surge. The satellite imagery captured a clear eye of the cyclone before it made landfall.
A massive winter storm hit the US, with some areas receiving record-breaking snowfall. The GOES-13 satellite data suggests that Punxsutawney Phil may not have seen his shadow, potentially altering the traditional Groundhog Day prediction.
NASA satellites reveal Cyclone Yasi's heaviest rainfall falling at a rate of about 2 inches per hour on the south and eastern sides, with frigid temperatures in its thunderstorms. The storm is expected to make landfall near Cairns in Queensland by Wednesday at a projected strength of 130 knots.
A massive winter storm is impacting 30 US states with severe weather conditions including heavy snowfall, freezing rain, and sleet. The storm system stretches from Texas to New England and has been described as one of the largest since the 1950s.
NASA's Terra satellite captured an image of Cyclone Yasi on Jan. 30 at 23:20 UTC, revealing a well-formed storm that appears to be strengthening. The cyclone is forecast to continue intensifying over the next 36 hours and make landfall just south of Cairns as a large system.