
-
Indian army says new exchange of gunfire with Pakistan
-
Epstein accuser Virginia Giuffre takes own life in Australia: family
-
Hundreds of buildings damaged, dozens injured in 6.3 Ecuador quake
-
India and Pakistan's Kashmir fallout hits economy too
-
Francis's funeral to be grand farewell to 'pope of the poor'
-
Pogacar faces defiant Evenepoel at Liege-Bastogne-Liege
-
Chelsea eye great escape against Barcelona in Women's Champions League
-
Iran, US to hold new round of high-level nuclear talks
-
'Energy and effort' pay off for Reds as Blues' woes continue
-
Albatross and closing birdie lift China's Liu to LPGA Chevron lead
-
On the horizon? Wave of momentum for high seas treaty
-
Developing countries should fast-track US trade deals: World Bank president
-
Grizzlies' Morant 'doubtful' for must-win game 4 v Thunder
-
Trump in Rome for pope funeral in first foreign trip of new term
-
Trump says Russia-Ukraine deal 'very close' after new Kremlin talks
-
US rookies lead PGA pairs event with McIlroy and Lowry in hunt
-
Trump tariff promises get a reality check
-
Warriors coach Kerr 'relatively optimistic' injured Butler will play game 3
-
Postecoglou hopes 'Stonecutter's Credo' can inspire Spurs
-
PSG lose unbeaten Ligue 1 record ahead of Arsenal showdown
-
Venezuela accuses El Salvador president of 'human trafficking'
-
Own goal takes Sundowns to African final against Pyramids
-
Scores of buildings damaged, 20 injured in Ecuador quake
-
US stocks extend rally as market eyes busy calendar next week
-
Pope's death triggers surge of disinformation he fought against
-
Rovanpera takes control of Rally Islas Canarias
-
Zelensky insists Crimea is Ukrainian as US envoy meets Putin
-
Patel and Mendis help Sunrisers beat Kings in Dhoni's 400th T20
-
Copa del Rey ref statements 'unacceptable': Real Madrid after boycotting final build-up
-
Insurance CEO's accused killer pleads not guilty to federal murder charges
-
FBI arrests Wisconsin judge for shielding undocumented migrant
-
Brazil ex-president Collor de Mello jailed for corruption
-
Zelensky insists Crimea 'belongs' to Ukraine as US envoy meets Putin
-
Real Madrid boycott Copa del Rey build-up over referee complaints
-
Trinidad and Tobago votes for parliament, PM, with opposition in lead
-
IMF chief hails 'constructive' Spring Meetings held under tariff uncertainty
-
Iran FM Araghchi in Oman ahead of nuclear talks with US
-
Dozens of buildings destroyed, 20 injured in Ecuador quake
-
Young Barca must 'enjoy' Real Madrid Copa final fight: Flick
-
Pakistan and India border closure separates families
-
Brazil's Bolsonaro 'stable' after post-surgery setback
-
Catholics in secular Cuba hail Francis as 'bridge'
-
US envoy Witkoff, Putin discuss 'possibility' of direct Russia-Ukraine talks
-
Community seeks answers after French school knife killing
-
German prosecutors seek jail terms in VW 'dieselgate' trial
-
Sabalenka makes winning start at Madrid Open
-
EU, US should de-escalate and negotiate trade deal: IMF Europe director
-
Russia accuses Ukraine of killing general in car bombing
-
Emery wants FA Cup glory and Champions League berth for Villa
-
Buildings destroyed, one injured in Ecuador quake

US to launch satellite to better prepare for space weather
The United States is aiming Tuesday to launch a new satellite expected to significantly improve forecasts of solar flares and coronal mass ejections -- huge plasma bubbles that can crash into Earth, disrupting power grids and communications.
A SpaceX Falcon Heavy rocket is set to carry the satellite into orbit from NASA's Kennedy Space Center in Florida, though weather so far appears unfavorable for the two-hour launch window opening at 5:16 pm (2016 GMT).
The GOES-U (Geostationary Operational Environmental Satellite U) mission is a collaboration between the space agency NASA and the National Oceanic and Atmospheric Agency (NOAA).
It will be the fourth and final in the GOES-R series of satellites that have tracked hurricanes and tornadoes, monitored climate and sea surface temperature, air quality and even meteor detections since 2016.
Orbiting 22,236 miles (35,785 kilometers) above the equator, the satellites match the speed of Earth's rotation in order to hold their positions over specific regions and provide continuous coverage.
They "are an indispensable tool for protecting the United States and the one billion people who live and work in the Americas," Pam Sullivan, of NOAA said in a press conference.
GOES-U is the first of the four to include a coronagraph, called the Compact Coronagraph-1 (CCOR-1). Coronagraphs block the Sun's disk and allow observation of its outermost layer, called the corona.
"That allows us to observe large explosions off the sun, called coronal mass ejections that can hurtle billions of tons of matter at millions of miles per hour towards Earth," said Elsayed Talaat, in charge of space weather observations at NOAA.
The ejections, known as CMEs, can disrupt Earth's magnetic field, causing satellites, energy infrastructure, and navigation systems to go down. Collecting space weather data allows authorities to issue warnings one to four days in advance.
In early May, the planet experienced its first level 5 geomagnetic storm in two decades, the highest rating on the scale, which unleashed spectacular auroras worldwide.
With the new coronagraph, the speed and direction of this event could have been better understood from the start, said Talaat.
Major disruptions weren't felt, but some farmers "reported being unable to plant their crops because the precision GPS relied upon by their equipment had malfunctioned," he said.
For the first time, the United States will have a coronagraph observing the solar corona almost continuously, with the CCOR-1 taking readings every 30 minutes.
Currently, such observations are received with a delay of up to eight hours. They are carried out by a satellite launched in 1995, which should cease operating within two years.
"Once operational CCOR-1 will mark a new chapter in space weather observations," said Talaat.
"Although the sun is no more active than in previous generations, our society has changed, and we are more sensitive than ever to the sun's changing mood."
P.Costa--AMWN