The stars aren’t fixed and unchanging, unlike what many ancient people thought. Once in a while, a star appears where there wasn’t one before, and then it fades away in a matter of days or weeks.
The earliest record of such a “guest star,” named so by ancient Chinese astronomers, is a star that suddenly appeared in skies around...
Robotic vehicles can optimize the flow of traffic[1] in cities even when mixed in with vehicles driven by humans, thereby improving traffic efficiency, safety and energy consumption, my colleagues and I found.
Robot vehicles are no longer a sci-fi concept: Cities around the world have been testing autonomous robotaxis[2] since 2016[3]. With the...
Diagnoses for sexually transmitted infections, or STIs, are increasing in older adults. The Centers for Disease Control and Prevention reports the number of people older than 65 diagnosed with chlamydia, gonorrhea or syphilis in the U.S. increased about three-, five- and sevenfold[1], respectively, from 2010 to 2023. Data also suggests that...
To experience a volcanic eruption is to witness nature’s raw power. If you would like to see one for yourself, Iceland is a great location[1] for it. Since 2021, seven eruptions have taken place along the Reykjanes Peninsula, close to Reykjavík.
These recent Icelandic eruptions have garnered attention from Earth scientists like me[2]. The...