If you've been waiting for the government to finally drop the motherlode of alien evidence, you might want to temper those expectations. Astrophysicist Neil deGrasse Tyson and former President Barack Obama both weighed in this week, and their message is basically: don't hold your breath.

Tyson wrote a New York Times op-ed on Wednesday arguing that while releasing government files on UFOs—or UAPs, as they're now called—is a good idea, the actual content will probably be a letdown. Years of congressional testimony from whistleblowers have built up so much hype that only a physical alien would satisfy the public. "I would be delighted if the files came with an actual alien," Tyson joked, preferably alive. He added that if an authentic alien walked out of the halls of Congress, no one would ever need to ask whether people "believe" in aliens—just like no one questions the existence of elephants. That being would become the literal "elephant in the room."

Obama, meanwhile, addressed the topic on Tuesday's Late Show with Stephen Colbert. Earlier this year, Obama caused a stir by saying on a podcast that aliens are "real," but he quickly clarified that he meant he believes life likely exists somewhere in the universe—not that he'd seen proof as president. On Colbert's show, Obama doubled down: "It hasn't happened yet." He argued that any secret involving aliens or alien spacecraft would inevitably leak. "I promise you some guy guarding the installation would have taken a selfie with one of the aliens and sent it to his girlfriend," Obama said.

The renewed interest comes as President Donald Trump teases new disclosures. At a Turning Point USA event in Phoenix last month, Trump said he'd directed Defense Secretary Pete Hegseth to start releasing UFO-related files. He claimed officials found "many interesting documents" and that releases would begin "very, very soon."

So will we finally get answers? Tyson and Obama both suggest the truth is probably more mundane than we hope. But hey, at least we'll have some new reading material.