The CRASH Clock is a new metric for measuring the risks of satellite congestion in low-Earth orbit. Its calculations are ...

A powerful solar storm could scramble communications, leading to a destructive scenario for satellites, known as Kessler ...

"A single collision could have catastrophic long-term consequences," the authors explain, and we would not have long to avoid ...

There are already tens of thousands of pieces of large debris in orbit, some of which pose a threat to functional satellites. Various agencies and organizations have been developing novel solutions to ...

Alice and Ellen Kessler, twin dancers and singers who launched their career in the 1950s and performed with Fred Astaire, Frank Sinatra and Harry Belafonte, among others, have died, police in Germany ...

German entertainers Alice and Ellen Kessler died at age 89 on the same day in November 2025. The duo — who were known professionally as The Kessler Twins — reportedly made the decision to have an ...

Entertainment duo Alice and Ellen Kessler, German twins who shot to superstardom in the post World War II era, died together by joint assisted suicide, the German Society for Humane Dying said Tuesday ...

Alice and Ellen Kessler, twin dancers and singers who launched their career in the 1950s and performed with Fred Astaire, Frank Sinatra and Harry Belafonte, among others, have died, police in Germany ...

Content warning: This story discusses assisted suicide. The Kessler Twins have left this world together. Alice Kessler and Ellen Kessler—German twin sisters who performed as a variety entertainment ...

Alice and Ellen Kessler, the German twin entertainers who gained international fame in the 1960s, have reportedly died at 89. The multi-hyphenates known for their singing, dancing and acting died by ...

Alice and Ellen Kessler, also known as the Kessler Twins, died by assisted suicide on Monday. The sisters were 89. Local police confirmed to CNN on Tuesday that “there was a deployment yesterday ...

The Kessler twins, who were best known for their postwar entertainment in the 1950s and ’60s, have died by joint assisted suicide. Alice and Ellen Kessler died at age 89 at their home in Grünwald, ...