- A planetary nebula is a type of emission nebula consisting of an expanding, glowing shell of ionized gas ejected from red giant stars late in their lives.
- Interstate 80 (en.wikivoyage.org)
Interstate 80 is a trans-continental Interstate Highway in the United States. It starts in the SoMa neighborhood of San Francisco, California and runs 2,901 miles (4,669 km) east to Teaneck, New Jersey. It connects the states of California, Nevada, Utah, Wyoming, Nebraska, Iowa, Illinois, Indiana, Ohio, Pennsylvania, and New Jersey.