Missile alert was declared in the city before sirens began to wail. Penza residents reported hearing a series of explosions.
On Jan. 26, 2026, the Submillimeter Array (SMA) on Maunakea crossed an important threshold for time-domain astronomy. For the ...
"With the launch of the ten-year Legacy Survey of Space and Time, the Rubin Observatory is opening a new window on the ...
A massive star in the Andromeda galaxy brightened in infrared light starting around 2014, then faded from optical view and ...