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

  • Mark Zuckerberg’s social media is hacked
  • Vice President Joe Biden unveils a new cancer clinical trial data base
  • An inflatable habitat opens at the International Space Station
  • Google loses at the Supreme Court in class action suit case

The details:

  • Facebook’s Mark Zuckerberg social media hacked

Facebook founder Mark Zuckerberg briefly found his Twitter account hijacked, as were at least two of his other social media accounts.

Zuckerberg’s Facebook account and password were not compromised, the company said in a statement; his account on Facebook-owned Instagram was also unaffected. FacebookInc. said Monday morning that none of the company’s systems or accounts were accessed and that Zuckerberg’s affected accounts have since been re-secured.

A person close to the situation confirmed that Zuckerberg’s LinkedIn and Pinterest accounts also were affected. Officials for both of those social media networks didn’t immediate respond to requests for comment.

Screenshots preserved by the technology website Engadget showed someone with access to his largely dormant Twitter account using it to say Zuckerberg was “in the LinkedIn database” and inviting the social media mogul to get in touch. LinkedIn declined to comment.

It’s not yet clear how the hack happened, although a spate of massive data breaches at companies — along with recent news that a 2012 breach at LinkedIn Corp. was much bigger that previously disclosed — has recently given hackers a wealth of password data to work with. Several high profile Twitter users have also had their accounts hijacked in recent weeks.

  • New cancer clinical trial data base

Vice President Joe Biden unveiled a public database for clinical data on cancer on Monday that aims to help researchers and doctors better tailor new treatments to individuals.

Overseen by the National Cancer Institute, the Genomic Data Commons starts with genomic and clinical data for 12,000 patients. The system is designed to increase sharing of information about the gene sequences of tumors and how patients with those tumors responded to specific treatments

Biden, speaking at the American Society of Clinical Oncology’s annual meeting in Chicago, said recent advances in DNA sequencing technology had allowed researchers to generate vast amounts of new data in a short period of time. But he said the cancer world “can do much better than we’re doing.

“The information is scattered among different government and academic repositories. Most of it is out of the reach of scientists,” Biden said. “We’re bringing it into one space.”

The database has emerged as the most tangible component of Biden’s cancer “moonshot,” a push in his final year in office to double the pace of cancer research toward a cure. Although the Obama administration has sought an influx of federal funds to accelerate research, Congress has approved only a fraction of what’s been requested.

  • High court rejects Google’s appeal in class action lawsuit

The Supreme Court won’t hear an appeal from Google over a class action lawsuit filed by advertisers who claim the internet company displayed their ads on “low quality” web sites.

The justices on Monday let stand a lower court ruling that said the lawsuit representing hundreds of thousands of advertisers using Google’s AdWords program could go forward.

Google argued that a federal appeals court in San Francisco should not have approved the class action because damages must be calculated individually for each company advertiser. The appeals court rejected that argument and approved use of a formula that would calculate harm based on the average advertiser’s experience.

Google runs what is by far the world’s largest digital ad network. It generated $67 billion in revenue last year

  • Inflatable chamber at space station

Space station astronauts opened the world’s first inflatable space habitat Monday and floated inside.

NASA astronaut Jeffrey Williams swung open the door to the newly expanded chamber and was the first to enter. He said it was pristine but cold inside.

The room — called the Bigelow Activity Activity Module, or BEAM — arrived at the International Space Station in April, packed in the trunk of a capsule loaded with supplies. It was inflated just over a week ago.

Mission Control said the temperature registered 44 degrees, as anticipated, at one end of the 13-foot-long, 10 ½ -foot-wide chamber. There was no trace of condensation, Williams noted.

For now, BEAM is empty and dark; Williams and Russian cosmonaut Oleg Skripochka wore head lamps to illuminate the crinkled, silver walls. They collected air samples, took expansion measurements and made sure the air-pressurization tanks were empty, before exiting and closing the door behind them.

The six-man station crew will deploy more sensors and other gear over the next few days. After each brief entry, the hatch will be sealed. Mission Control anticipates just six or seven entries a year.