Wispy nebula clouds can be seen reflecting the blue-white light of the Pleiades in the stunning amateur photo.

The last few months of the year offer some of the most spectacular astronomical events—from supermoons to meteor showers—and with daylight savings time ending this weekend, you'll have even more of a ...

Seven Sisters Meaning: The term “Seven Sisters” refers to seven major oil companies that controlled a vast majority of the world’s oil reserves and production from the 1940s to the 1970s. The phrase ...

The term "Seven Sisters of Petroleum" refers to seven huge oil corporations which had been controlling the worldwide production and pricing of oil from the 1940s through the 1970s. The Seven Sisters ...