Arthur Knott 10/27/26 Arthur Knott 10/27/26

Does A Black Hole Destroy Information?

It depends on what the word means. Information can be news, a count of yes-or-no answers, the stuff the world is made of, or the subject of a fifty-year argument. A new philosophy paper uses a 2007 thought experiment, in which a black hole hands back a diary like a mirror, to sort them out.

Arthur Knott 10/12/26 Arthur Knott 10/12/26

The Moving Edge

Many of the record-distance galaxies reported since the Webb telescope began work started as an estimate read from one dark edge in their light. When a team checked 183 of those estimates with a spectrograph, 48 held up. A short illustrated lecture on the edge, how it moves, and the nearer galaxies that can fake it.

Arthur Knott 10/6/26 Arthur Knott 10/6/26

The Photon That Shouldn’t Be Here

A detector in the Caucasus recorded one particle of light at about 300 trillion electron volts from the brightest explosion on record, far past where the universe should block it. If it is real, it points beyond the Standard Model.

Arthur Knott 9/27/26 Arthur Knott 9/27/26

Black Hole Star

In August 2026 the press announced a new kind of thing in space. The thing had been sitting in a public archive since 2023. What was new was the agreement about what to call it.

Arthur Knott 9/19/26 Arthur Knott 9/19/26

A Forest Made of Missing Light

In 1970 an astronomer found hundreds of dark lines in a quasar's light and called them a forest. The name holds in one respect and fails in three, and string theory's first real chance in decades of being shown wrong now runs through it.