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Two grey reef sharks in formation on a blue background at Kilibobs Knob, Papua New Guinea.

Gray reef sharks form long-lasting social groups likely for hunting, study shows

Dwarf planet Ceres is an ocean world with salty water under the surface, NASA mission finds

TOPSHOT - A man scoops leaked oil from the vessel MV Wakashio, belonging to a Japanese company but Panamanian-flagged, that ran aground near Blue Bay Marine Park off the coast of south-east Mauritius on August 8, 2020. - France on August 8, 2020 dispatched aircraft and technical advisers from Reunion to Mauritius after the prime minister appealed for urgent assistance to contain a worsening oil spill polluting the island nation's famed reefs, lagoons and oceans. Rough seas have hampered efforts to stop fuel leaking from the bulk carrier MV Wakashio, which ran aground two weeks ago, and is staining pristine waters in an ecologically protected marine area off the south-east coast. (Photo by Jean Aurelio PRUDENCE / L'Express Maurice / AFP) (Photo by Jean Aurelio Prudence/L'Express Maurice/AFP via Getty Images)

The ship that leaked oil into pristine Mauritian waters could break in two. That would be an environmental catastrophe

A controversial mining project that was all but killed by the Obama administration is now moving forward under President Trump's EPA.

House panel asks watchdogs to investigate Army Corps of Engineers' review of Alaskan mine project

Trump vs Biden on climate change

A Miami-Dade County Elections Department employee places a vote-by-mail ballot for the August 18 primary election into a box for rejected ballots as the canvassing board meets at the Miami-Dade County Elections Department, Thursday, July 30, 2020, in Doral, Fla. President Donald Trump is for the first time publicly floating a "delay" to the Nov. 3 presidential election, as he makes unsubstantiated allegations that increased mail-in voting will result in fraud. (AP Photo/Lynne Sladky)

Republicans ask Supreme Court to intervene in Rhode Island case involving witness requirements for absentee ballots

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Making geothermal energy accessible