"An epic exploration of possibilities. What If is a Webby Award-winning science web series that takes you on a journey ...
Astronomers have detected mysterious X-ray signals coming from a nearby white dwarf star for more than 40 years. We may now ...
"We might have finally found the cause of a mystery that's lasted over 40 years," said researcher Sandino Estrada-Dorado.
After tracking a puzzling X-ray signal from a dying star for decades, astronomers may have finally explained its source: The ...
which came to be called Planet X. Lowell searched for this elusive planet, but he died in 1916 having never found it. Using a tool called a blink comparator, Tombaugh finally found the mysterious ...