Month: April 2024

Enlarge / For now, Fiat's sole US offering is the (RED) 500e, but future versions will arrive in "drops." (credit: Stephen Edelstein)

It's cliché to describe an Italian automaker as operating on a slower, more laid-back timetable than its rivals, but that seems to be the case with Fiat's North American product planning.

The outgoing Fiat 500 brought the brand back to the United States in 2011, but it had been on sale in Europe since 2007. An electric 500e arrived after the gasoline models, but as then-CEO Sergio Marchionne was quick to point out, that was only to satisfy California's zero-emission vehicle mandate.

Now the 500e is back, once again later than the European version (which was first shown in 2020), but this time, Fiat is skipping the gasoline engines for the line. The 2024 Fiat 500e is no compliance car—it's now the only version of this retro hatchback you can get and the only Fiat model available in the US—nor is it a mass-market item.

Enlarge / In this video frame from ULA's live broadcast, three RS-68A engines power the Delta IV Heavy rocket into the sky over Cape Canaveral, Florida. (credit: United Launch Alliance)

The final flight of United Launch Alliance's Delta IV Heavy rocket took off Tuesday from Cape Canaveral, Florida, with a classified spy satellite for the National Reconnaissance Office.

The Delta IV Heavy, one of the world's most powerful rockets, launched for the 16th and final time Tuesday. It was the 45th and last flight of a Delta IV launcher and the final rocket named Delta to ever launch, ending a string of 389 missions dating back to 1960.

United Launch Alliance (ULA) tried to launch this rocket on March 28 but aborted the countdown about four minutes prior to liftoff due to trouble with nitrogen pumps at an off-site facility at Cape Canaveral. The nitrogen is necessary for purging parts inside the Delta IV rocket before launch, reducing the risk of a fire or explosion during the countdown.

Enlarge / A visibly emotional Peter Higgs was present when CERN announced Higgs boson discovery in July 2012. (credit: University of Edinburgh )

Peter Higgs, the shy, somewhat reclusive physicist who won a Nobel Prize for his theoretical work on how the Higgs boson gives elementary particles their mass, has died at the age of 94. According to a statement from the University of Edinburgh, the physicist passed "peacefully at home on Monday 8 April following a short illness."

“Besides his outstanding contributions to particle physics, Peter was a very special person, a man of rare modesty, a great teacher and someone who explained physics in a very simple and profound way," Fabiola Gianotti, director general at CERN and former leader of one of the experiments that helped discover the Higgs particle in 2012, told The Guardian. "An important piece of CERN’s history and accomplishments is linked to him. I am very saddened, and I will miss him sorely.”

The Higgs boson is a manifestation of the Higgs field, an invisible entity that pervades the Universe. Interactions between the Higgs field and particles help provide particles with mass, with particles that interact more strongly having larger masses. The Standard Model of Particle Physics describes the fundamental particles that make up all matter, like quarks and electrons, as well as the particles that mediate their interactions through forces like electromagnetism and the weak force. Back in the 1960s, theorists extended the model to incorporate what has become known as the Higgs mechanism, which provides many of the particles with mass. One consequence of the Standard Model's version of the Higgs boson is that there should be a force-carrying particle, called a boson, associated with the Higgs field.