Share this on WhatsApp President Donald Trump tested positive for the novel coronavirus last week, just days after attending the first presidential debate with former vice president Joe Biden at Case Western Reserve University and the Cleveland Clinic’s Health Education Campus. While it is unclear if the president was infected at the time, people with […]
Share this on WhatsApp The vast Greenland ice sheet is melting at some of its fastest rates in the past 12,000 years. And it could quadruple over the next 80 years if greenhouse gas emissions don’t decline dramatically in the coming decades. Research published yesterday in the journal Nature warns that the ice sheet’s future losses depend heavily […]
Share this on WhatsApp When a star explodes at the end of its lifetime, it smears the elements forged in its heart across vast stretches of space. The results, dramatic designs of gas and dust known as supernova remnants, contain structures that have long puzzled researchers. But supernovae occur in the Milky Way only once […]