Here are our picks for the most amazing space photos of the week.
The moon's phases are caused by changes in the amount of illumination from the moon that is visible from the Earth's surface as the moon orbits our planet each month. There are eight distinct phases every month, four of them occurring roughly a week apart. They are: the New Moon; Waxng Crescent; First Quarter (or half-full; Waxing Gibbous; Full Moon; Waning Gibbous; Last Quarter (half-full on other side); Waning Crescent. You can read definitions for these moon phases here. When the moon is full and at its closest point to the Earth in it's orbit, it is known as a "Supermoon." Lunar eclipses occur during full moons, when the moon passes through all or part of Earth's shadow. During New Moons, the moon can cover part or all of the sun's disk, creating a solar eclipse. Learn more about the moon's phases here.
Related Topics: The Moon
The new moon occurs on Friday, April 5, at 4:50 a.m. EDT (0450 GMT). During this lunar phase, you won't see the moon in the night sky, but there are plenty of other celestial treats to look for!
This year skywatchers will get to witness three supermoons in a row on Jan. 21, Feb. 19 and March 20.
The full moon of March, called the Worm Moon, will occur on Wednesday, March 20, at 9:43 p.m. EDT (0143 GMT on March 21), just under four hours after the vernal equinox.
The rule for determining when Easter Sunday takes place is simple — so why isn't Easter in March this year?
The Red Planet makes a close approach to the blood-red moon in this photo taken during the longest total lunar eclipse of the century, on July 27, 2018.
The second installment of this winter's trio of supermoons, sometimes nicknamed the Super Snow Moon, will peak tomorrow morning, so don't forget to step outside and look up tonight.
If the rays of the setting or rising sun hit the moon just right, the moon appears to turn red or ruddy-brown. This is called a blood moon.
Overnight from Jan. 20 to Jan. 21, 2019, millions of people in North and South America can enjoy a full hour of a total lunar eclipse.
Here is a list of all the full moon names, dates and times (for the Eastern time zone) in 2019, beginning with the 'wolf' moon in January, to the 'cold' moon in December.
A beautiful crescent moon with visible earthshine forms a triangle with the Pleiades star cluster and the bright planet Venus just after sunset in this twilight scene.
A twilight scene shows a 96 percent illuminated moon peeking through the clouds behind the Roman Catholic Church of La Sagrada Familia, in Barcelona.
Uranus reached opposition on Oct. 23, and if you want to observe the frigid planet this week, look toward the full moon.