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The Latest Breaking News from Joe Rao

Fred Espenak, astronomy's 'Mr. Eclipse', dies at 71

Astronomy has lost one of its most assiduous calculators of eclipses with the passing of astronomer Fred Espenak, known widely as "Mr. Eclipse."

Space

What to expect from the newfound Comet Swan: An observer's guide

Here's an observers' guide to the newly discovered Comet 2025 F2 (SWAN), which is visible in northern skies right now.

Space

Solar eclipse US weather forecast: Best places to see the moon 'bite' the sun tomorrow

A partial solar eclipse is coming this weekend, but weather could be an issue for many hoping to get a glimpse of the moon "taking a bite" out of the sun.

Space

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When's the next 'parade of planets'? The past, present and future of planetary alignments

Just how rare are planetary alignments?

Space

'Blood Worm Moon' US weather forecast: Best places to see tonight's total lunar eclipse

Here are the weather conditions that can be expected during the the total "Blood Moon" lunar eclipse thought the United States on March 13, 2025.

Space

What will happen during the total lunar eclipse of March 2025?

Observers across most of the United States will have front-row seats to the spectacular total lunar eclipse overnight on March 13-14. Here's what to expect.

Space

See Mercury at its best in the night sky over the next 2 weeks

In March 2025 we have a fine opportunity to view the planet that many astronomy guide books refer to as the most difficult of the naked-eye planets to see: Mercury.

Space

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The Winter Triangle meets the 'Mars Triangle' in the night sky this month

For the next few weeks, the planet Mars will form an isosceles triangle with the two bright stars marking the heads of the Gemini Twins, Pollux and Castor.

Space

Best total solar eclipse 2026 cruises for the ultimate adventure

From Arctic frontiers to Mediterranean shores: The greatest 2026 total solar eclipses to give you the best view of totality.

Space

The moon will cover the Seven Sisters of the Pleiades this week. Here's how to see it

On the night of Feb. 5, a waxing gibbous moon will once again cover up the "Seven Sisters" of the famous Pleiades star cluster.

Space

The Full Wolf Moon 'eats' Mars tonight. Here's how to see it

On the night of Jan. 13, the full moon will appear to pass in front of Mars, resulting in an occultation visible from the United States, much of southern and eastern Canada, and West Africa.

Space

Watch the moon hide the 'Seven Sisters' of the Pleiades star cluster tonight

The moon will pass in front of the Pleiades star cluster during an occultation on Jan. 9, 2025. Here's how to see it.

Space

Saturn and the moon put on a celestial show Sunday night. Here's how to see it

Saturn gets close to the moon tonight, and some skywatchers in Florida, Central America and South America will see the ringed planet briefly disappear behind our lunar companion.

Space

A star exploded almost 1000 years ago and left us with the gorgeous Crab Nebula. Here's how to see it

To see the Crab Nebula for yourself, you'll have to wait until around midnight local daylight time, after it has sufficiently risen high enough above the east-northeast horizon.

Space

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Space

'It was 3 hours of magic': Spectacular auroras thrill stargazers across the world (and internet) as intense geomagnetic storm batters Earth (photos)

A powerful geomagnetic storm illuminated auroras that lit the skies over Earth on Thursday (Oct. 9) after X 2 solar flare that erupted from the sunspot AR 3848 on Tuesday (Oct. 8) evening.

Space

Watch spectacular Comet Tsuchinshan-ATLAS rise during the early hours of Sept. 28 with this free livestream

Comet C/2023 A3 Tsuchinshan-ATLAS will reach perihelion — and if it survives its close call with the sun, we may be in for a real treat.

Space

Comet Tsuchinshan-ATLAS may dazzle this weekend. But is the best yet to come?

Comet Tsuchinshan-ATLAS will have a close encounter with the sun today (Sept. 27) here's how to make the most of comet viewing opportunities this weekend and beyond.

Space

Comet Tsuchinshan-ATLAS nears the sun this month. Will it be visible to the naked eye?

Comet Tsuchinshan-ATLAS will sweep around the sun on Sept. 27 to make a brief foray into the morning sky. Will it be a bright naked-eye object with a significant tail? Here's where and when you might be able to see it.

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Space

Is the Sagittarius constellation a teapot or an archer?

Although officially known as the celestial archer, the zodiacal constellation of Sagittarius is far better recognized as a teapot. Here's how to see it this season.

Space

Don't miss the 'unconventional' Supermoon Blue Moon tonight

This months' full moon falls on Aug. 19 and it will be the only full moon of August 2024. So how can we call it a "Blue Moon?"

Space

The original 'Mr. Eclipse:' How a 19th-century astronomer calculated the dates of over 13,000 eclipses

For nearly a century, the 1887 book "Canon of Eclipses" was considered to be the authoritative work on solar and lunar eclipses.

Space

Watch 'Devil Comet' approach the sun during explosive coronal mass ejection (video)

This NASA space-based observatory video shows 'Devil Comet' 12P/Pons-Brooks passing past bright Jupiter while the sun explodes in the distance.

Space

'Devil Comet' 12P/Pons-Brooks is heading for the sun. Will it survive?

'Devil Comet' 12P/Pons-Brooks is hurtling toward the sun where it will make its closest approach on April 21. We take a look at whether this celestial vagabond will survive.

Space

This Week In Space podcast: Episode 105 — Apoc-eclipse 2024!

On Episode 105 of This Week In Space, Rod and Tariq talk with astronomer and meteorologist Joe Rao about the solar eclipse of 2024.

Space

The April 8 solar eclipse will bring weird sights, sounds and feelings

As the skies darken during the total solar eclipse on Monday (April 8), onlookers in the path of totality will experience a wave of strange phenomena that could confuse and delight them.

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