Arctic sea ice appeared to have reached its yearly lowest extent on Sept. 13, NASA and the NASA-supported National Snow and Ice Data Center (NSIDC) at the University of Colorado Boulder have reported. Analysis of satellite data by NSIDC and NASA showed that at 1.79 million square miles (4.64 million square kilometers), this year's Arctic sea ice minimum extent is the eighth lowest in the consistent long-term satellite record, which began in 1978.
Astrophysicists from Moscow State University have found a new way to estimate the mass of supermassive black holes outside our galaxy, even if these holes are barely detectable. The results of the study were published in the Astronomy and Astrophysics journal
Former Hurricane Otis was not showing any thunderstorm development or precipitation on satellite imagery on Sept. 19. As a result, the National Hurricane Center declared Otis a remnant low pressure area.
Infrared imagery from NASA's Aqua satellite has revealed that the area of strongest storms within now Tropical Depression Norma has diminished.
Satellite data is enabling forecasters to look inside and outside of powerful Hurricane Maria. A NASA animation of satellite imagery shows Hurricane Maria's first landfall on the island of Dominica.
Jose has been a named storm for nearly two weeks now as it continues to slowly move northward off the US East Coast east of the Outer Banks of North Carolina. NASA's GPM satellite and NOAA's GOES East satellites have provided a look at the rainfall and movement of this long-lived storm.
Emil J. Gumbel's formulas are fundamental for extreme value theory. This statistical discipline describes extreme incidents, such as floods or storms. Little is known, however, that he was also a pioneer of modern data journalism, unveiling the patterns of political murder in the Weimar Republic. Professor Matthias Scherer and his team at the Technical University of Munich (TUM) now intend to fill in the gaps in what the world knows about Gumbel.
A Brown University study identifies three large surface ice deposits near Mercury's north pole, and suggests there could be many additional small-scale deposits that would dramatically increase the planet's surface ice inventory.
The very high-energy part of the spectrum of Cassiopeia A results from the cosmic rays within the remnant. Until now, this range of energy could not be measured with sufficient precision. An international team led by scientists from the Institute for Space Sciences, the Institut de Fisica d'Altes Energies and the Institute of Cosmos Sciences of the University of Barcelona, in Spain, has finally succeeded in doing those observations with the MAGIC telescopes.
Scientists from NCRA-TIFR, Pune, and RIT, USA, have discovered the closest ever binary supermassive black hole system in a spiral galaxy NGC 7674, located about 400 million light years from Earth. The apparent separation of the two black holes in the binary system is less than one light year. This is direct observational proof of the existence of close supermassive black hole binary systems inside galaxies, which are potential sources of gravitational waves.