Elon Musk/Twitter Elon Musk is back on Twitter. After last sharing a tweet on the social media platform on June 21, the Tesla CEO, 51, returned to the site on Friday, writing in a message: “Feeling… maybe… a little bored?” In a follow-up tweet, Musk then shared a photo of himself with his sons – including Griffin and triplets Kai, Damian and Sax – whose mother is his first wife, Justine Wilson, posing next to Pope Francis. “Honored to meet the @Pontifex yesterday,” Musk wrote alongside the photo, which saw each of Musk’s men standing next to the Pope in suits. Never miss a story — sign up for PEOPLE’s free daily newsletter to stay up-to-date on the best PEOPLE has to offer, from juicy celebrity news to compelling human interest stories. Elon Musk arrives for the 2022 Met Gala at the Metropolitan Museum of Art on May 2, 2022, in New York City. – The Gala raises money for the Metropolitan Museum of Art’s Costume Institute. The theme of the 2022 Gala is “In America: An Anthology of Fashion.” (Photo by Angela Weiss/AFP) (Photo by ANGELA WEISS/AFP via Getty Images) ANGELA WEISS/AFP via Getty RELATED: Elon Musk says his deal to buy Twitter is ‘temporarily on hold’ due to spam statistics In a later tweet, Musk shared a throwback image of him and his ex-wife Talulah Riley in Italy. “Venice, a place of Great Memory,” he captioned the shot, which sees him and Riley, 36, posing in black and white attire with face masks covering their eyes. Want to get the biggest stories from PEOPLE every day? Subscribe to our new podcast, PEOPLE Every Day, for the essential celebrity, entertainment and human interest news Monday through Friday. Musk also shared another message on Twitter on Friday — a tribute to Technoblade, a YouTuber who recently died of cancer at age 23. “Popular Minecraft YouTuber Technoblade with 12 billion subscribers recently died at the age of 23 due to cancer and this [me] realize that cancer is [an] absurd piece of literal garbage and death, but also try to live your best life with people who know,” he wrote, along with a quote from the video game character Sonic the Hedgehog. Added Musk: “They could be dead the next day and you’ll regret not doing things with them.” RELATED VIDEO: Twitter Co-Founder Jack Dorsey on Elon Musk’s New Ownership: ‘This Is the Right Way’ Musk’s latest 10-day hiatus from Twitter is the longest he has taken from the social media platform since October 2017, the Wall Street Journal reported. The SpaceX CEO previously hadn’t gone more than six days without tweeting since January 2018, the agency said. The WSJ reported that Musk, who is currently mulling a billion-dollar deal to buy Twitter, has taken shorter breaks from the site, however, including one last January.