The hottest point on a gaseous planet near a distant star isn't where astrophysicists expected it to be -- a discovery that challenges scientists' understanding of the many planets of this type found in solar systems outside our own.
NASA found heavy rainfall in Tropical Cyclone Berguitta as it closed in on Mauritius and Reunion Islands. On Jan. 18, NASA's Terra satellite captured an early morning visible image that showed the center of the storm just south of Mauritius and the storm blanketing both islands. Warnings were in effect for both islands. A tropical cyclone alert class 3 is in effect for Mauritius and La Reunion is on Orange Alert.
Dust is everywhere -- not just in your attic or under your bed, but also in outer space. To astronomers, dust can be a tool to study the history of our universe, galaxy, and Solar System. For example, observations indicate that type II supernovae -- explosions of stars more than ten times as massive as the Sun -- produce copious amounts of dust, but how and when they do so is not well understood.
Heavy rain surrounded Tropical Cyclone Berguitta as it continued to move toward the island of Mauritius in the Southern Indian Ocean. NASA calculated the rate in which rain was falling within the hurricane-strength storm in the Southern Indian Ocean.
NASA's Terra satellite passed over the Southern Indian Ocean and saw Tropical Cyclone Berguitta moving southwest toward the island of Mauritius. A tropical cyclone alert class 2 is in effect for Mauritius.
NOAA's JPSS-1 satellite provided a visible image of the tropical storm after it made landfall along the Pilbara Coast in the northwestern part of Western Australia.
The paper, titled "Collocated ionosonde and dense GPS/GLONASS network measurements of midlatitude MSTIDs", covers the first ever complex analysis of MSTIDs obtained by two methods of radio sounding. MSTIDs, which are huge wave perturbations somewhat resembling aurora borealis, are invisible in midlatitude areas.
Increased fluctuations in the path of the North Atlantic jet stream since the 1960s coincide with more extreme weather events in Europe such as heat waves, wildfires and flooding. The new research published in Nature Communications is the first reconstruction of historical changes in the North Atlantic jet stream prior to the 20th century. By using tree rings, the researchers developed a historical look at the position of the North Atlantic jet back to 1725.
Tropical Cyclone Joyce, formerly known as tropical cyclone 5S, was moving south along the coast of Cape Leveque, Western Australia on Jan. 11 when a polar-orbiting satellite passed overhead. NOAA's JPSS-1 satellite provided a visible image of the tropical storm as it continued to move south along the northwestern part of Western Australia.
Tropical Depression 5S was consolidating just offshore Cape Leveque, Western Australia when NASA's Aqua satellite gathered temperature data that showed the strongest part of the depression remained over water.