WATCH NASA LIVESTREAM: Super blue blood moon eclipse

A rare celestial event more than 150 years in the making is finally here.

NASA's live stream of the highly anticipated super blue blood moon total lunar eclipse begins at 5:30 a.m. EST/2:30 a.m. PST Wednesday on NASA-TV.

(CLICK PLAY TO WATCH LIVESTREAM BELOW)

But what is it?

>> MORE COVERAGE: 9 things to knowWhat you need to know

Early Wednesday, the full moon will pass through the Earth's shadow to give us a total lunar eclipse. The moon will appear reddish, hence the name "blood moon." Totality, when the moon will be entirely inside the Earth's dark umbral shadow, will last a bit more than 1 1/4 hours.

Wednesday's full moon is also the third in a series of three straight full moon supermoons – that is, super-close full moons. It's the first of two blue moons in 2018.

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This marks the first blue moon total eclipse in America since March 31, 1866.

Here's when you'll want to look skyward or tune in:

Eastern Standard Time

  • Partial umbral eclipse begins at 6:48 a.m. EST
  • Total eclipse not visible; moon sets beforehand

Central Standard Time

  • Partial umbral eclipse begins at 5:48 a.m. EST
  • Total eclipse begins at 6:51 a.m. CDT
  • Moon sets before totality ends

Mountain Standard Time

  • Partial umbral eclipse begins at 4:48 a.m. MST
  • Total eclipse begins at 5:51 a.m. MST
  • Greatest eclipse at 6:29 a.m. MST
  • Total eclipse ends at 7:07 a.m. MST

Pacific Standard Time

  • Partial umbral eclipse begins at 3:48 a.m. PST
  • Total eclipse begins at 4:51 a.m. PST
  • Greatest eclipse at 5:29 a.m. PST
  • Total eclipse ends at 6:07 a.m. PST

Alaskan Standard Time

  • Partial umbral eclipse begins at 2:48 a.m. AKST
  • Total eclipse begins at 3:51 a.m. AKST
  • Greatest eclipse at 4:29 a.m. AKST
  • Total eclipse ends at 5:07 a.m. AKST

Hawaii-Aleutian Standard Time

  • Partial umbral eclipse begins at 1:48 a.m. HAST
  • Total eclipse begins at 2:51 a.m. HAST
  • Greatest eclipse at 3:29 a.m. HAST
  • Total eclipse ends at 4:07 a.m. HAST

– WHIO.com and AJC.com contributed to this report.