Science News Roundup: Virgin Orbit fails first rocket launch attempt; Weather delays SpaceX's first astronaut launch from Florida and more

Following is a summary of current science news briefs.

Virgin Orbit fails first rocket launch attempt from modified plane

Richard Branson's Virgin Orbit company aborted its first attempt to launch a rocket into space from the belly of a 747 airplane on Monday, the company said. In a test of the company's plan to launch satellites into space, the 70-foot (21.34 m) rocket called LauncherOne was to blast into orbit at about 6.5 miles altitude from a modified airplane named Cosmic Girl.

Weather delays SpaceX's first astronaut launch from Florida

SpaceX, billionaire entrepreneur Elon Musk's private rocket company, was forced by foul weather to scrub a planned launch on Wednesday of two Americans into orbit from Florida, a mission that would mark the first spaceflight of NASA astronauts from U.S. soil in nine years. The countdown was halted less than 17 minutes before the SpaceX Falcon 9 rocket was due to lift off from the Kennedy Space Center, propelling Doug Hurley and Bob Behnken on a 19-hour ride aboard the company's newly designed Crew Dragon capsule to the International Space Station.

Elon Musk's SpaceX raises $346 million ahead of debut astronaut mission

Elon Musk's SpaceX said on Tuesday that it raised $346.2 million in a new round of funding, a day before it launches two American astronauts to the International Space Station. The private rocket company's launch of its first crewed mission on Wednesday from NASA's Kennedy Space Center in Florida will put an end to the U.S. space agency's nine-year hiatus in human spaceflight.

Collision of galaxies may have spurred our solar system's formation

A violent event on a colossal scale - the crash of two galaxies - may have paved the way for our solar system's birth. A star-formation binge in the Milky Way spanning the time when the solar system was born more than 4.5 billion years ago was apparently precipitated by the collision between our galaxy and a smaller one called Sagittarius, scientists said on Tuesday.

In lean times, fierce dinosaur Allosaurus resorted to cannibalism

The dreaded dinosaur Allosaurus was the scourge of the Jurassic Period landscape some 150 million years ago, an apex predator just as Tyrannosaurus rex was 80 million years later during the Cretaceous Period. And, like T. rex, Allosaurus may have engaged in cannibalism to keep its tummy filled during lean times, based on a western Colorado trove of fossils described by scientists on Wednesday.