The cosmos is offering up a double feature in August: a pair of supermoons culminating in a rare blue moon.

Catch the first show Tuesday evening as the full moon rises in the southeast, appearing slightly brighter and bigger than normal. That’s because it will be closer than usual, just 222,159 miles (357,530 kilometers) away, thus the supermoon label.

The moon will be even closer the night of Aug. 30 — a scant 222,043 miles (357,344 kilometers) distant. Because it’s the second full moon in the same month, it will be what's called a blue moon.

“Warm summer nights are the ideal time to watch the full moon rise in the eastern sky within minutes of sunset. And it happens twice in August,” said retired NASA astrophysicist Fred Espenak, dubbed Mr. Eclipse for his eclipse-chasing expertise.

The last time two full supermoons graced the sky in the same month was in 2018. It won’t happen again until 2037, according to Italian astronomer Gianluca Masi, founder of the Virtual Telescope Project.

Masi will provide a live webcast of Tuesday evening’s supermoon, as it rises over the Coliseum in Rome.

“My plans are to capture the beauty of this ... hopefully bringing the emotion of the show to our viewers,” Masi said in an email.

“The supermoon offers us a great opportunity to look up and discover the sky,” he added.

This year’s first supermoon was in July. The fourth and last will be in September. The two in August will be closer than either of those.

Provided clear skies, binoculars or backyard telescopes can enhance the experience, Espenak said, revealing such features as lunar maria — the dark plains formed by ancient volcanic lava flows — and rays emanating from lunar craters.

According to the Old Farmer’s Almanac, the August full moon is traditionally known as the sturgeon moon. That’s because of the abundance of that fish in the Great Lakes in August, hundreds of years ago.

Share:
More In Science
Sanctuary City for Marijuana
Cheddar's CannaBiz explores the latest trends, politics, and market opportunity in this space. Cheddar Anchor's Brad Smith, Hope King and Alyssa Julya Smith speak with legislators and start-up founders in this emerging market.
Between Bells: March 6, 2018
This Changes Things: Advice for the executives and leaders of tomorrow, brought to you by American Express OPEN. On Between Bells: The Bachelor finale and big changes at ESPN. With Popular Science, Us Weekly, and more.
Dr. Valter Longo's Secrets to Living a Healthier and Longer Life
His new Amazon bestseller, "The Longevity Diet," helps patients to live longer, healthier and more fulfilling lives by slowing aging, fighting disease and optimizing weight. Dr. Valter Longo sits down with Alyssa Julya Smith in Los Angeles to share some of his secrets to living a healthier life.
Late Night With SpaceX
Sarah Lewin, associate editor at Space.com, breaks down SpaceX's landmark 50th Falcon 9 launch. The rocket took off early Tuesday morning, launching a communications satellite into orbit.
Closing Bell: March 5, 2018
The Dow closes up more than 300 points as trade war fears subside. Amazon is looking to team up with banks to build a checking account-type product. There's also new speculation on where Amazon's HQ2 might be located. Apple reportedly releasing a cheaper MacBook Air. Former Trump campaign aide refuses to cooperated and the Mueller investigation.
How Online Bone Marrow Drives Are Helping To Fight Blood Cancer
Every three minutes, someone in the U.S. is diagnosed with blood cancer. These people often rely on bone marrow donations to survive, but getting a match can be difficult. To make registering easier, the non-profit DKMS has launched virtual bone marrow drives.
Stem Cells Reveal New Secrets About Mental Illness
Dina Fine Maron, health & science editor at Scientific American, discusses the breakthrough that could help doctors diagnose mental illnesses. Stem cells have enabled researchers to see how lithium affects the brain.
Cheddar Cycles for Survival
Eric Harris, president and chief operating officer at Cheddar, joins us to talk about the company's participation in Cycle for Survival, an indoor charity cycling event raising money for rare cancers.
Load More