Astronomers have found two very different examples of extremely large, highly energetic plasma jets (nicknamed Porphyrion after a giant in Greek mythology) being emitted by a supermassive black hole. These
In 1977 NASA launched Voyager 1 as part of its ambitious Voyager program to explore the outer planets and beyond. The spacecraft was equipped with imaging systems, magnetometers, plasma detectors—all
On April 11, 1970, NASA launched Apollo 13, the third crewed mission aiming for a moon landing. Two days later, 210,000 miles from Earth an oxygen tank exploded and led