Scientists may have detected the first tantalizing hint of primordial black holes, which are thought to have formed in the initial moments after the Big Bang.

The excitement centers on a cosmic gravitational-wave signal recorded on November 12, 2025, when the LIGO/Virgo/KAGRA (LVK) network issued an automated alert for an unusual event. Unlike the hundreds of black hole and neutron-star mergers routinely observed since 2015, this signal appeared to involve at least one object far too light to be any known stellar remnant.

Ordinary black holes form when massive stars collapse, and neutron stars also arise from stellar cores; both types of objects have masses roughly equal to or greater than the Sun. The November 12 signal instead pointed to a sub-solar-mass compact object, something astrophysics cannot easily explain.

This has led to speculation that the lighter component might be a primordial black hole, a long-theorized relic born directly from density fluctuations in the ultra-hot plasma of the early universe — long before stars existed. These exotic objects could span a huge mass range: from far lighter than a paperclip to hundreds of thousands of solar masses.

If they exist, primordial black holes could influence cosmic evolution and even account for dark matter, the mysterious invisible substance that makes up most of the universe’s mass but does not interact with light.

The scientific reaction, however, remains cautious. LIGO member Christopher Berry highlighted the event as a potential subsolar source but emphasized the possibility of a false alarm. For an event this unusual, the estimated false-alarm rate — about once every four years — is too high to claim a discovery. Noise artifacts often mimic faint or atypical gravitational-wave signals. Researchers are searching for any accompanying electromagnetic flash, but the localization region spans an enormous patch of sky, making such follow-up nearly impossible.

Even so, the possibility is captivating because primordial black holes have never been observed despite decades of theoretical work. Some could have evaporated through Hawking radiation early in cosmic history, while larger ones might survive today. A merger between two such objects would produce exactly the kind of signal LIGO and Virgo detected. Yet without additional events, scientists may never be certain whether S251112cm was real or merely a glitch.

Experts say the best path forward is to wait for more detections — something future upgrades to LIGO, Virgo, and KAGRA are expected to enable. If similar signals appear, they could provide the first direct evidence for primordial black holes and offer crucial clues to the nature of dark matter.

In a move that drew near-uniform support on the House floor, lawmakers on Monday advanced a blunt, unambiguous message: those who took part in the Hamas-led October 7 atrocities in Israel will not set foot in the United States. The “No Immigration Benefits for Hamas Terrorists Act of 2025,” introduced by Rep. Tom McClintock (R-CA), sailed through the House by voice vote—without objection—underscoring just how little patience remains in Washington for loopholes that allow terrorists to slip through America’s immigration system.

McClintock’s bill takes direct aim at anyone who “carried out, participated in, planned, financed, afforded material support to or otherwise facilitated” the brutal rampage Hamas launched on October 7, 2023, a massacre that left more than 1,200 Israelis—children, infants, seniors—slaughtered for the crime of being Jewish. The bill explicitly includes members of Hamas and Palestinian Islamic Jihad, and it arrives with 18 Republican co-sponsors, including Reps. Joe Wilson (R-SC), Claudia Tenney (R-NY), and Ann Wagner (R-MO).

Democrats signaled support but quibbled with the method. Rep. Jamie Raskin (D-MD) insisted that members of Foreign Terrorist Organizations are already barred from entering the United States, and argued that Congress has historically avoided naming specific attacks in the Immigration and Nationality Act—even after 9/11. McClintock countered that there is precedent, pointing to the Nazi Party and the Palestine Liberation Organization (PLO), whose members are explicitly blocked under American law. “Does anyone seriously argue that we should repeal the sanctions against persons who aided and abetted the Nazis’ Holocaust?” he asked. “If not, why oppose extending the same sanctions to the Nazis’ would-be modern-day successors?”

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The timing of the bill’s passage wasn’t accidental. It comes on the heels of the shocking arrest of Mahmoud Amin Ya’qub al-Muhtadi, a Gaza-born operative accused of helping coordinate the October 7 attacks, then waltzing into the United States on a fraudulent visa. According to federal prosecutors, al-Muhtadi organized fighters in Gaza, moved behind the first wave of terrorists entering Israel, and sent messages instructing attackers to “bring the rifles” and “get ready.” His phone even pinged an Israeli cell tower on the morning of the assault. Yet he made it into the Dallas-Fort Worth Airport in 2024 and was later found working at a restaurant in Lafayette, Louisiana.

For McClintock and his allies, that case alone is all the justification America needs. The bill now moves to the Senate—where an earlier version languished—and House Republicans are making clear they won’t accept another failure to act.