Scientists have found conclusive proof that supernova remnants accelerate cosmic rays to incredible speeds. The discovery was made using four years of data from NASA's Fermi Gamma-ray Space Telescope and provides a key finding in the search for the sources of high-energy cosmic rays.
Cyclone Gino's rainfall is being pushed away from its center due to vertical wind shear. The heaviest rain fell southeast of the center at 2 inches per hour. Cyclone Gino may weaken quickly as it transitions into an extra-tropical storm.
Researchers found a 36% autumn and 9% winter decline in Arctic sea ice volume over the last decade. The study builds on previous studies using submarine and NASA satellite data, verifying compatibility with CryoSat-2 satellite measurements.
Cyclone Gino maintained a large area of powerful thunderstorms with cold cloud top temperatures, indicating heavy rainfall. The storm's eye weakened due to cooler sea surface temperatures and increasing wind shear.
Cyclone Gino strengthens with powerful thunderstorms and a ragged eye, but will weaken as it moves into cooler waters. The storm is expected to transition to a cold core low pressure area by February 15.
The European Space Agency has selected NASA's Goddard team to join the Euclid mission, a space telescope designed to probe the mysteries of dark energy and dark matter. The project aims to explore the cosmic infrared background and provide insight into stellar and galactic populations in the early universe.
NASA released an animation of NOAA satellite imagery showing the lifetime of the historic nor'easter that brought over 2 feet of snow to New England states on Feb. 8-9, 2013. The storm left over 650,000 without power and led to travel bans in several governors' states.
A new study using NASA's Gravity Recovery and Climate Experiment (GRACE) satellites has found that the Middle East region lost 117 million acre feet of freshwater reserves between 2003 and 2012. The majority of this loss, approximately 73 million acre feet, was due to reductions in groundwater.
The Journal of Geophysical Research Planets special edition features 35 LRO papers highlighting discoveries on ancient impacts, global structures, and subsurface hydrogen deposits.
Landsat 5 successfully operated for 28 years and 10 months, delivering high-quality global data of Earth's land surface. The satellite overcame numerous technical issues to achieve this record-breaking duration.
A long duration solar flare triggered an Earth-directed coronal mass ejection (CME), which left the sun at speeds of around 500 miles per second. This CME is likely to cause a geomagnetic storm when it connects with the outside of the Earth's magnetic envelope, potentially affecting auroras near the poles.
Tropical Cyclone 15S formed from System 92S on Feb. 9 and intensified into a tropical storm on Feb. 11. The storm strengthened to hurricane force within two days, but is expected to weaken due to wind shear and cooler waters.
Tropical Cyclone Haley formed on Feb 10 with maximum sustained winds strengthening to 45 knots, but convection weakened around the center. The storm moved southeast at 11 knots, then dissipated due to wind shear and cooler sea surface temperatures by Tuesday, Feb 12.
The NASA's Mars Atmosphere and Volatile EvolutioN (MAVEN) spacecraft is undergoing rigorous environmental testing at Lockheed Martin facilities. The tests simulate extreme temperatures, vacuum, and vibration to ensure the spacecraft can operate in space.
Two coronal mass ejections (CMEs) were observed by NASA's Solar Terrestrial Relations Observatory and Solar and Heliospheric Observatory, emitting solar particles into space at speeds of up to 750 miles per second. Historically, CMEs of this strength have caused minimal effects on Earth
Astronomers have uncovered a mysterious infant star with strobe-like flashes, revealing insights into the early stages of star formation. The flashes are thought to be caused by periodic interactions between two newly formed stars in a binary system.
Scientists successfully demonstrated a new X-ray camera, STORM, that observed charge exchange processes near Earth's magnetosphere. This technology provides insights into the physical process and can help determine space weather in our solar system.
Astronomers Robert Gendler and Jay GaBany combined archival Hubble images with their own ground-based observations to create a detailed photo illustration of the galaxy. The resulting image reveals the optical component of the galaxy's 'anomalous arms' and provides insights into the galaxy's structure and composition.
In 2012, the James Webb Space Telescope made significant progress with the delivery of two primary mirrors, the Mid-Infrared Instrument (MIRI), and the Fine Guidance Sensor and Near-Infrared Imager and Slitless Spectrograph (FGS/NIRISS). The telescope's center section backplane structure was also completed, supporting the mirrors and o...
NASA-NOAA's Suomi NPP satellite captured a night-time image of extra-tropical cyclone Felleng, showing clouds and precipitation pushed east and southeast due to wind shear. The storm has completed its transition and is expected to dissipate in the next couple of days.
Researchers propose a new hypothesis, the retention theory, to explain the ribbon's width, suggesting solar wind particles become trapped due to intense waves and vibrations in the magnetic field. This theory agrees with available observations and provides insight into how our heliosphere interacts with the universe.
The BARREL mission uses balloons to collect data on radiation belt particles, complementing NASA's Van Allen Probes. The team tracks particle movement and behavior, aiming to understand where radiation escapes the belts.
Cyclone Felleng formed over the Mozambique Channel and transitioned into a cold core low pressure area, with NASA's TRMM satellite capturing its rainfall rates. The storm dissipated in the next couple of days as it moved south-southeast in the open waters of the Southern Indian Ocean.
Cyclone Felleng is squeezing between Madagascar and La Reunion as it moves southward in the Mozambique Channel. The storm is expected to weaken as it continues its southeasterly direction.
Scientists observed a flux rope forming ahead of time in a coronal mass ejection (CME), providing a case study on its formation. The high-temperature plasma glow helped highlight the flux rope, which was then severed from the sun's surface, releasing billions of tons of solar material.
A coronal mass ejection erupted from the sun on January 31, 2013, leaving the sun at speeds of around 575 miles per second, which is a fairly typical speed for CMEs. This event had historically mild effects but could cause geomagnetic storms if it connects with the outside of the Earth's magnetic envelope.
The VISIONS mission aims to study the auroral wind by launching a sounding rocket into the Northern Lights. The rocket will observe oxygen atoms flowing out of the atmosphere and provide insights into how they gain energy to escape Earth's gravity.
Cyclone Felleng intensified on Jan. 30, with sustained winds near 115 knots (132.3 mph), threatening both Madagascar and La Reunion. The storm is creating dangerous seas with wave heights up to 38 feet.
A powerful cold front is sweeping across the eastern United States, replacing spring-like temperatures with winter-time weather and producing powerful storms. The NOAA GOES-13 satellite captured a stunning image of the storm system on January 30, showing a line of clouds stretching from Canada to the US Gulf Coast.
NASA's Suomi NPP satellite captured images of Cyclone Felleng showing cold overshooting cloud tops, indicating high energy release. The storm has strengthened significantly since the previous day, with maximum sustained winds near 90 knots.
Cyclone Garry's powerful thunderstorms fueled heavy rainfall over the open waters of the Southern Pacific Ocean. The storm was predicted to weaken while moving toward the southeast, eventually becoming an extra-tropical cyclone.
Cyclone Oswald's remnants continue to bring heavy rainfall and gusty winds to eastern Queensland, Australia. The Australian Bureau of Meteorology reports rainfall totals exceeding 700 mm in less than 2 days, leading to rapid river rises.
Tropical Cyclone Garry continues to intensify due to favorable conditions, with microwave satellite imagery confirming deep convection around its low-level circulation center. The storm is expected to briefly reach cyclone strength before wind shear weakens and dissipates it.
NASA's satellite imagery reveals a powerful band of thunderstorms east of Oswald's center, with temperatures as cold as -63 Fahrenheit (-52 Celsius). The low-level circulation center has become well-defined, triggering severe weather warnings for destructive winds and heavy rainfall across parts of Australia.
The famous Chamber A thermal vacuum testing chamber, upgraded to accommodate the James Webb Space Telescope, will undergo a 90-day test period. The test will confirm the telescope's performance in cold temperatures and include operating system tests.
A Sun coronal mass ejection occurred on January 23, 2013, at a speed of around 375 miles per second, impacting the magnetosphere. The event caused a space weather phenomenon called a geomagnetic storm, potentially affecting GPS and satellite communications.
The NASA Super-TIGER balloon has shattered the previous record for longest flight by a balloon of its size, reaching 46 days in flight. The balloon is carrying the Super Trans-Iron Galactic Element Recorder (Super-TIGER) experiment to measure rare heavy elements among high-energy cosmic rays.
Tropical Storm Peta formed off the coast of Port Hedland, Australia on January 22, 2013, with rain rates reaching up to 94 mm per hour. The storm strengthened into a tropical depression before making landfall and dissipating over land, weakening its structure.
Tropical Storm Oswald brought extreme rainfall to northern Queensland, with NASA's TRMM satellite measuring over 600mm of rain in some areas. The storm caused severe flooding, cutting off communities and forcing travelers to cancel plans.
Tropical Storm Oswald weakened over land in the southwestern Cape York Peninsula of Queenstown, Australia, with maximum sustained winds dropping from 35 knots to 25 knots. The storm brought thunderstorms, heavy rainfall, and gusts up to 90 kph, posing a threat to locations including Aurukun, Weipa, and Cooktown.
The Interface Region Imaging Spectrograph (IRIS) will study the lower levels of the sun's atmosphere, including the chromosphere and transition region. The mission aims to unravel how matter, light, and energy move from the surface to the corona, with implications for solar flares and coronal mass ejections.
Research using Cassini spacecraft observations reveals that Titan's craters are being filled by exotic sand dunes, suggesting a much older surface. The team compared craters on Titan to those on Ganymede and found that Titan's craters were significantly shallower, indicating erosion from windblown sand.
Scientists with NASA's Lunar Reconnaissance Orbiter (LRO) successfully transmitted an image of the Mona Lisa to the spacecraft from Earth using laser pulses. The team achieved simultaneous laser communication and tracking, paving the way for future high-speed data transfer at planetary distances.
The JPSS-1 Spacecraft has completed its delta Critical Design Review, demonstrating that the development of the spacecraft is on track to provide critical environmental data. The success of this review marks an important milestone in the project, with the spacecraft now approved to proceed into implementation.
Tropical Storm Emang is showing moderate to heavy rainfall near its center, with estimated rates of 2 inches per hour. The storm is currently moving westward at 3 knots and expected to pass southwest La Reunion Island by January 21.
The Polarimeter Definition Experiment (PODEX) tests new instruments designed to analyze aerosols and clouds, which can impact human health and climate. The experiment aims to develop a new class of polarimeters that can provide more detailed information about aerosols and clouds.
The aft-optics subsystem of NASA's James Webb Space Telescope has completed performance testing, marking a significant milestone in the telescope's integration and test activities. The successful completion of this testing demonstrates that the AOS can withstand the extreme temperatures and vibration environment of space.
The average global temperature in 2012 was 58.3 degrees Fahrenheit, 1.0 F warmer than the mid-20th century baseline, continuing a long-term trend of rising global temperatures.
Tropical Storm Emang showed sinking air in its southwestern quadrant, weakening convection. The storm's low-level center became slightly elongated, hindering intensification, but forecasters expect improved atmospheric conditions to strengthen the storm.
Cyclone Narelle's intensity has steadily weakened as it moved southward towards Western Australia. TRMM satellite data showed falling cloud heights and weaker rainfall, indicating a significant decrease in the storm's power.