The deal to build a new stadium for the Tampa Bay Rays appears to be in tatters, much like the roof of Tropicana Field after Hurricane Milton.

Pinellas County Commission Chairperson Kathleen Peters sent a two-page letter to the Tampa Bay Rays on Monday asking the team to put in writing whether it intends to move forward on a $1.3 billion stadium voted on in July or provide a notice of termination by Sunday.

New research reports the most powerful cosmic rays ever detected. Because the rays lose energy as they travel through space, their detection at high energies means they are likely coming from sources relatively close to Earth.

Scientists with the HESS Observatory have identified the most energetic cosmic electrons ever observed. What could this mean for our understanding of the universe?

Five telescopes of the H.E.S.S.-collaboration in Namibia are used to study cosmic radiation, especially gamma radiation. With data from 10 years of observations, researchers have now been able to detect cosmic electrons and positrons with an unprecedented energy of more than 10 tera-electronvolts.