Search results
Results from the WOW.Com Content Network
Sol (borrowed from the Latin word for sun) is a solar day on Mars; that is, a Mars-day. A sol is the apparent interval between two successive returns of the Sun to the same meridian (sundial time) as seen by an observer on Mars. It is one of several units for timekeeping on Mars. A sol is slightly longer than an Earth day.
The basic time periods from which the calendar is constructed are the Martian solar day (sometimes called a sol) and the Martian vernal equinox year.The sol is 39 minutes 35.244 seconds longer than the Terrestrial solar day, and the Martian vernal equinox year is 668.5907 sols in length (which corresponds to 686.9711 days on Earth).
This suggested that a calendar based on the sol and the Martian year might be a useful timekeeping system for astronomers in the short term and for explorers in the future. For most day-to-day activities on Earth, people do not use Julian days, as astronomers do, but the Gregorian calendar, which despite its various complications is quite ...
The Sun-synodic orbital period of Deimos of about 30.4 hours exceeds the Martian solar day ("sol") of about 24.7 hours by such a small amount that 2.48 days (2.41 sols) elapse between its rising and setting for an equatorial observer. From Deimos-rise to Deimos-rise (or setting to setting), 5.466 days (5.320 sols) elapse.
While Spirit became immobile in 2009, and ceased communications in 2010, Opportunity exceeded its planned 90 sol (Martian days) duration of activity by 14 years 46 days (in Earth time). Opportunity continued to move, gather scientific observations, and report back to Earth until 2018. What follows is a summary of events during its continuing ...
Remembering the fathers in heaven (or wherever you may believe they go after they pass) is important all the time—but especially on Father's Day! Some of the Father's Day quotes you'll read here ...
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
"Mars Is Heaven!" is a science fiction short story by American writer Ray Bradbury, originally published in 1948 in Planet Stories. "Mars Is Heaven!" was among the stories selected in 1970 by the Science Fiction Writers of America as one of the best science fiction short stories published before the creation of the Nebula Awards.