In today’s Bulldog wrapup of technology and science news:

  • A SpaceX rocket booster crashes
  • Samsung buys cloud startup in U.S.
  • Lil Wayne performs at E3 after suffering seizure
  • Energy Department awards $82 million for nuclear energy projects

The details:

  • SpaceX rocket crashes in latest attempt at barge landing

After three successes, a leftover SpaceX rocket booster crashed Wednesday while trying to land on an ocean barge.

The attempt came minutes after the Falcon 9 rocket successfully launched two satellites from Cape Canaveral, Florida.

SpaceX chief Elon Musk said via Twitter that there was a problem with one of the three engines used to slow the first-stage booster for landing. He said it may be the hardest crash of all. Early attempts also failed.

SpaceX’s first successful landing on the platform off Florida’s east coast came in April, with two more last month. It also landed a 15-story booster in December on land at Cape Canaveral Air Force Station.

Musk plans to recycle boosters to lower launch costs. They normally are discarded in the ocean.

  • Samsung to acquire US cloud service firm to boost software

Samsung Electronics has agreed to buy a U.S. cloud service startup to boost its software and internet services.

The South Korean company said Thursday that its acquisition of Joyent Inc. will enable Samsung to access its own cloud platform to run its internet-based services, apart from renting other companies’ data centers. The company did not disclose financial terms.

The move will likely accelerate Samsung’s push to develop services that rely on external computing power for quick and large-scale data analysis.

Software has been a traditional weakness for Samsung, one of the largest tech hardware manufacturers and the world’s top supplier of smartphones, television sets and memory chips. The Korean company opened its Global Innovation Center in Silicon Valley in 2013 to help fortify its software and services.

The company has been buying U.S.-based startups, responding to suggestions that ituse outside expertise and technologies to more quickly adapt to the changing business environment.

  • Lil Wayne performs at E3 after suffering seizures

Lil Wayne performed Wednesday for attendees of the Electronic Entertainment Expo just days after suffering what his spokesman described as two minor seizures.

The rapper and Samsung pitchman performed at the company’s booth inside the Los Angeles Convention Center. He delivered such songs as “John” and “No Ceiling” as six skate boarders did tricks behind him on a half-pipe stage.

The 33-year-old New Orleans native was hospitalized after his private jet was forced by a medical emergency to land Monday at Omaha’s Eppley Airfield. He was later said to be in stable condition.

Lil Wayne was originally scheduled to appear Tuesday at the video game industry’s annual trade show, which is attended by more than 50,000 invitees.

The rapper showed no signs of fatigue at E3. After the brief performance, he weaved past the crowd and appeared on a live stream at Twitch’s booth to promote his mobile skateboarding game, “Sqvad Up.”

Lil Wayne was hospitalized in 2013 for seizures. He told a Los Angeles radio station that he has epilepsy.

  • Feds announce $82 million for nuclear energy research

U.S. Energy Secretary Ernest Moniz has announced $82 million for nuclear energy projects in 28 states as part of the government’s plan to reduce carbon emissions.

Moniz said Tuesday that the 93 research projects will help scientists innovate with nuclear technologies that can eventually enter the commercial market. He made the announcement while visiting the Department of Energy’s Idaho National Laboratory in eastern Idaho.

“Nuclear energy remains very important,” he said. “It remains by far the biggest source of carbon-free electricity.”

Moniz’s announcement fits in with President Barack Obama’s plan to reduce emissions by generating carbon-free electricity. Nuclear energy currently produces about 19 percent of the nation’s energy, and officials say that represents about 60 percent of the nation’s carbon-free energy.

Much of the money announced Tuesday is heading for universities, about $36 million for 49 university-led projects. Fifteen universities also will receive nearly $6 million for research reactor and infrastructure improvements.

“Frankly, there’s been probably not enough of that in recent years,” Moniz said. “These are very important teaching tools.”

Two innovations Moniz cited specifically he’d like to see are advances in small modular reactors and work on what he called advanced fuels, including what he called accident-tolerant fuels.