Tropical Depression 13W formed on Aug 17 and dissipated less than a day later, with NASA capturing its final image via the MODIS instrument aboard Aqua satellite. The storm's weakened state allowed nearby Tropical Storm Trami to take over, leading to the depression's demise.
A series of devastating wildfires has swept through Idaho, with multiple fires burning out of control due to strong winds and hot temperatures. The largest fire, the Beaver Creek Fire, has grown to over 100,000 acres and threatens nearby towns and ski resorts.
Tropical Storm Unala weakened to a depression after forming in the central Pacific, with cloud top temperatures indicating strong storms with heavy rain potential. The storm's interaction with Typhoon Pewa is expected to cause further weakening and dissipation within 24 hours.
Tropical Storm Trami appears very large in infrared data from NASA's Aqua satellite, spanning over two-thirds the size of the Philippines. The massive storm is now making a U-turn in the Northwestern Pacific Ocean.
Researchers found significant regional differences in the relationship between population and air pollution, particularly in Europe and India. Nitrogen dioxide concentrations more than doubled when cities increased in population from 1 million to 10 million people.
Tropical Storm Erin weakened to a tropical depression due to cooler waters and dry air in the Eastern Atlantic. Its maximum sustained winds dropped to near 35 mph, with no significant changes expected over the next couple of days.
Tropical Storm Pewa has formed in the central Pacific, according to NASA's satellite imagery. System 90C, located about 775 miles south-southwest of Kauai, Hawaii, has a medium chance (30%) of developing into a tropical cyclone within the next 48 hours.
Dozens of fires detected in southeastern Africa, primarily in Mozambique and Malawi, indicating intentional burning by farmers. The fires, mainly during the main growing season, have been linked to agricultural practices to enhance crop yields and manage land.
Fires in eastern Russia's Siberia and Urals are often set by farmers to return nutrients to the soil and clear unwanted plants. These fires produce smoke degrading air quality, highlighting the need for fire management teams to limit uncontrolled wildfires.
Tropical Storm Erin is intensifying in the eastern Atlantic due to strong thunderstorms and a 'hot tower' in its center, reaching maximum sustained winds near 40 mph. Research shows tropical cyclones with hot towers are more likely to intensify.
NASA satellite data revealed that Ex-Tropical Storm Utor still had a circulation after making landfall in southern China. The storm was responsible for one death and five missing persons as of August 15.
A trio of fires in Northern California continues to burn, with the Corral Complex fire spanning over 2,500 acres. The Salmon River Complex has burned over 13,500 acres, with firefighters working to contain it. Crews are prioritizing structure protection and preparing for potential ignitions to strengthen containment lines.
Scientists tracked the Chelyabinsk meteor plume using NASA satellite data, observing its formation of a thin stratospheric dust belt. The plume evolved as it moved around the Northern Hemisphere, with different particles experiencing varying wind speeds.
In central Canada, wildfires have burned over half a million acres, with 508 new fires starting in the past week. Most of these fires were concentrated in British Columbia and Saskatchewan, with areas of high to extreme fire danger reported.
Heavy rainfall in Typhoon Utor's thunderstorm feeder-bands was detected by NASA's TRMM satellite, with rain falling at rates of over 73mm/hour. The storm strengthened over the South China Sea before making landfall in China, with maximum sustained winds reaching 95 knots/109.3 mph.
The Gold Pan Complex Fire in Idaho burned 17,103 acres of mixed conifer forest, fueled by dead trees and insects like the mountain pine beetle. High temperatures trapped smoke in valley bottoms.
The 119,543-acre Pony Complex fire is now 20 percent contained, with two cabins destroyed in Syrup Creek. Firefighters are making progress in containing the southern portion of the fire, while the Beaver Creek Fire continues to spread into Deer Creek. Multiple residences have been defended and road closures are in effect.
Four NASA satellites provided crucial data on Super-Typhoon Utor's rainfall rates, wind speeds, and storm strength. The data helped forecasters predict the typhoon's landfall and track its movement through the South China Sea.
Hurricane Henriette weakened to a depression in the Central Pacific Ocean on August 11, with NASA's TRMM satellite observing its decline. Two other low-pressure areas, System 93E and System 92E, are being monitored for possible development in the Eastern Pacific Ocean.
NASA's GOES-West satellite image captures three active tropical cyclones in the Central and Eastern Pacific Oceans. System 92E has a more developed circulation and is expected to become a tropical cyclone with a high chance, while System 93E has a low chance of development.
Scientists from NASA and other agencies use satellite observation and computer modeling to predict wildfire activity in the American West. The data helps guide firefighting resources and prevention efforts, with over 2.5 million acres burned this year.
Tropical Depression 11W is organizing and strengthening in the western North Pacific Ocean, with NASA's Aqua satellite capturing an infrared image of the system. Cloud top temperatures indicate strong storms, suggesting heavy rainfall rates when the depression strengthens into a tropical storm.
Astronomers using Hubble Space Telescope have solved the 40-year mystery on the origin of the Magellanic Stream. Most of the gas was stripped from the Small Magellanic Cloud about 2 billion years ago, and a second region originated from the Large Magellanic Cloud.
The OSIRIS-REx mission will study asteroid Bennu in detail before returning with a sample of material from its surface. The spacecraft will map the asteroid's composition from orbit using spectrometers to identify key elements like water, metals, and organic carbon.
NASA's TRMM satellite detected powerful thunderstorms reaching 10 miles high in Hurricane Henriette, which dropped heavy rainfall. The storm's towering clouds, known as 'hot towers,' played a role in its formation and intensification.
Tropical Storm Gil's cloud top temperatures warmed since the previous day, indicating a loss of thunderstorms' ability to form more powerful storms. As the storm weakened, it ceased to be a tropical cyclone and continued moving south of Hawaii.
In July 2013, Oregon's severe drought and thunderstorms ignited dozens of difficult-to-control wildfires. The fires burned nearly 144,688 acres across the state, with smoke posing health risks to residents. Firefighters battled the blazes, including the Douglas Complex and Big Windy Complex, which collectively burned over 50,000 acres.
NASA's Aqua satellite captured infrared data showing very cold cloud top temperatures of strong thunderstorms around Tropical Storm Mangkhut's center before landfall in northern Vietnam. The storm is expected to dissipate within 24 hours after making landfall about 65 miles south of Hanoi.
Researchers use NASA satellite data to track zebra movements and predict migration timing, revealing the importance of environmental cues. The study combines GPS tracking with satellite imagery and rainfall data to understand what drives animal migrations.
A persistent high-pressure weather pattern contributed to the heat wave, which saw temperatures reach 32° Celsius in northern Siberia. The fires are burning in an unusual area, significantly north of the typical summer wildfire zone.
Scientists predict the sun's magnetic field will reverse in three to four months, affecting space weather and potentially cosmic rays. This change marks the midpoint of Solar Cycle 24, with half of 'solar max' behind and half yet to come.
The Firestation experiment will study the link between lightning and terrestrial gamma ray flashes (TGFs), which are brief but intense bursts of gamma rays produced in Earth's atmosphere. The study aims to understand the cause and effect mechanisms behind TGFs and their relationship with lightning.
The discovery of GJ 504b challenges traditional planet-formation theories, suggesting alternative formation methods may be needed. The exoplanet orbits its star at nearly 9 times the distance of Jupiter from the sun.
Tropical Storm Henrietta is strengthening in the Eastern Pacific Ocean with a developing eye, while Tropical Depression Gil continues to weaken and may cease to qualify as a tropical cyclone. Henrietta's maximum sustained winds have increased to near 60 mph/95 kph and are forecast to become a hurricane in the next day.
The Japanese vehicle delivers new hardware to NASA's Robotic Refueling Mission (RRM), enabling the demonstration of satellite-servicing activities and cryogen replenishment. The RRM team will work with the Dextre robot to test intermediate steps leading up to cryogen transfer.
The Eastern Pacific Ocean has become extremely active, with NASA tracking Hurricane Gil and two developing tropical low-pressure areas. System 91E is expected to slow down as it approaches the Central Pacific, while Hurricane Gil is expected to weaken over cooler waters and stronger wind shear.
Tropical Storm Jebi developed on July 31 and is now filling half of the South China Sea. NASA satellite data shows strong winds and heavy rainfall in a band of thunderstorms southwest of the center.
VERIS will focus on the very hot material present in active regions of the corona, magnetically complex spots that can cause solar flares and coronal mass ejections. The rocket's six-minute flight will yield rich information about the tiny details of these processes.
NASA's TRMM and Aqua satellites observed Tropical Storm Gil intensifying into a hurricane, with the storm being pursued by another developing system. The satellite imagery revealed that the cloud pattern of Gil was not as organized as initially thought, with some areas showing less intense storms.
NASA's HS3 mission will investigate tropical cyclones using a new dual-frequency conical-scanning Doppler radar called HIWRAP. The instrument measures wind and rain in hurricanes, providing critical data sets needed for improved understanding and forecasting.
A NASA technologist has developed a fully automated tool, the Evolutionary Mission Trajectory Generator (EMTG), that gives mission planners detailed directions for efficiently steering spacecraft to distant interplanetary destinations. The tool can calculate multiple trajectories in minutes, reducing the time required to design missions.
The TESS mission will map the locations of over 500 transiting exoplanets, including small planets around bright stars. This is the first time NASA has studied a large number of small planets with advanced instruments.
Tropical Depression Flossie's remnants brought strong winds to Hawaii, causing power outages on the islands of Maui and Molokai. The storm's low pressure area was centered near Honolulu, Hawaii, about 140 miles west-northwest.
NASA's TRMM satellite observed intense bands of rain wrapping around Tropical Storm Gil's future eye, indicating strong organization. Powerful storms with rain rates over 5.2 inches per hour were detected near the storm's center, featuring 'hot towers' that could contribute to rapid intensification.
Tropical Storm Flossie weakened as it interacted with the Hawaiian Islands, with NASA's TRMM satellite detecting a small area of heavy rain west of the center. The rest of Flossie's rainfall was light to moderate, and forecasters predict continued weakening over the next two days.
NASA's GOES Project captured images of Dorian's remnants using GOES-13 satellite data, showing an elongated shape stretching a few hundred miles east and northeast of the Turks and Caicos Islands. The National Hurricane Center notes that re-development is unlikely over the next couple of days as the remnant low moves west to northwest.
Tropical Depression 7E formed in the Eastern Pacific Ocean with strong but fragmented thunderstorms. The depression is expected to intensify into a tropical storm and potentially become a hurricane, moving west-northwest at 16 mph.
The successful deployment of the GOES-R satellite's magnetometer boom will enhance space weather forecasting, predicting geomagnetic storms with greater accuracy. This technology improvement supports better protection of property, public safety, and economic development.
Tropical Storm Flossie brings heavy rainfall and strong winds to the Hawaiian Islands, with dangerously high surf expected. Satellite data shows the storm's movement and expected impact on Kona coffee crops, with moist air causing orographic lift and rain on the windward side.
Tropical Storm Dorian's remnants are producing showers and thunderstorms northeast of the Northern Leeward Islands. The low pressure area is moving westward towards Puerto Rico and the Bahamas, with a medium chance (40%) of regeneration into a tropical cyclone.