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A ship leaves an Argentina Naval base to join the search for missing submarine ARA San Juan. Photo: Marina Devo / AP

Argentinian navy ships detected noises coming from beneath the ocean's surface that sounded like tools banging against the hull of a submarine, CNN reports. The sounds were detected about 330 miles from the coast of Argentina and may be a distress signal sent by the ARA San Juan — a submarine with a crew of 44 that disappeared Wednesday.

The submarine's captain reported a failure in the battery system before the sub went missing. Navy officials said they have not been able to contact the vessel since Wednesday, but it was scheduled to dock in Argentina on Sunday. The search continues in the area where the sounds were detected.

Go deeper

Bryan Walsh, author of Future
19 mins ago - Health

Falling sperm counts could threaten the human race

Illustration: Sarah Grillo/Axios

A new book makes the case that sperm counts have been falling for decades — and a major reason is chemicals in the environment that disrupt the body's hormonal system.

Why it matters: The ability to reproduce is fundamental to the viable future of any living thing. If certain chemicals are damaging our fertility over the long term, human beings could end up as an endangered species.

2 hours ago - Health

Black churches become vaccine hubs

A woman arrives at a COVID-19 vaccination clinic outside the Pennsylvania Avenue Baptist Church in southeast D.C. Photo: Jacquelyn Martin/AP

Black pastors have a new job on their plates during COVID-19: encouraging skeptical congregants to get vaccinated.

Why it matters: “There’s distrust in our community. We can’t ignore that,” Rev. James Coleman of D.C.'s All Nations Baptist told AP.

Biden names USPS board of governors nominees, as Democrats put pressure on DeJoy

United States Postal Service Postmaster General Louis DeJoy at a Feb. 24 committee hearing. Photo: Graeme Jennings/pool/AFP via Getty Images

President Biden on Wednesday nominated a former postal union lawyer, a vote-by-mail advocate, and a former deputy postmaster general to sit on the Postal Services' Board of Governors.

Why it matters: The nominations, which require Senate confirmation, come as some Democrats call for Postmaster General Louis DeJoy's ouster and others push for Biden to nominate board members to name a new postmaster general.