Take a tour into the heart of SOFIA, the world's largest airborne observatory. SOFIA Stratospheric Observatory for Infrared Astronomy is an extensively modified Boeing 747SP aircraft that carries a 100-inch (2.5 meter) reflecting telescope with the ability to study astronomical objects and phenomena, including star birth and death, the formation of new solar systems, black holes at the center of galaxies, and complex molecules in space. Video: http://go.nasa.gov/2g0QnBS | NASA - National Aeronau

186K views · 7K reactions | Blue Whales are the largest known animal in the history of Earth, and according to workers at Harbor Breeze, they're also rarely seen by humans. So whale watchers off the coast of Long Beach got a special treat when they saw five of them on one tour.  https://abc7.la/3JVNQoC | ABC7 | Facebook