
Scientists have completed the broadest search to date for extraterrestrial civilizations by scanning roughly 10.3 million stars using a radio telescope in Australia, but have found nothing – not yet, at least.

France accused the United States on Wednesday of seeking to undermine international talks to update cross-border taxation for the digital age and urged Europe to prepare an EU tax if the negotiations fail.

The United States has revoked visas for more than 1,000 Chinese nationals under a May 29 presidential proclamation to suspend entry from China of students and researchers deemed security risks, a State Department spokeswoman said on Wednesday.

Britain on Wednesday readied to intentionally breach its EU divorce treaty with new legislation that critics warned would undermine its global standing and any hopes for an orderly exit out of the world's biggest single market.

Young adults with underlying conditions such as morbid obesity, diabetes, and hypertension are at the highest risk of being placed on a ventilator or dying from Covid-19, according to a study of 3,000 hospitalized patients aged 18 to 34.

AstraZeneca has paused a late-stage trial of one of the leading COVID-19 vaccine candidates after a suspected serious adverse reaction in a study participant, health news website Stat News reported on Tuesday.

By Hanane Hadj-Moussa and Kenneth B Storey, Carleton University, Canada – Humans are a picky species. We are happiest in a near-constant environment and experience severe and often fatal injuries if our core temperature falls below 25 C or if the oxygen content of the air drops below 10%. Many other species, however, live in almost constant change.

The United States on Tuesday accused China of fearing a free media as it denounced Beijing's new restrictions on the international press. China's foreign ministry “has informed us that they plan to further limit access for foreign journalists working in the PRC,” State Department spokeswoman Morgan Ortagus said.

European Union lawmakers have canceled their session at the parliament's headquarters in the French city of Strasbourg next week, despite a legal obligation to do so, because of the coronavirus, the assembly's president said on Tuesday.

Argentina was chosen as the seat of a new UNSECO Ocean Sciences Specialized Center, in the framework of OTGA, Ocean Teacher Global Academy, from the International Oceanographic Commission, ahead of the Ocean Sciences for Sustainable Development Decade.