The universe is like a safe to which there is a combination. But the combination is locked up in the safe.

— Peter De Vries

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Updated: 9 weeks 2 days ago

Comet 29P Undergoes Brightest Outburst in Recent Years

Wed, 09/29/2021 - 5:32pm

Catch one of the most active small bodies in the solar system during a rare superoutburst.

The post Comet 29P Undergoes Brightest Outburst in Recent Years appeared first on Sky & Telescope.

Categories: Astronomy

Cassiopeia Cornucopia — Pretty Little Clusters All in a Row

Wed, 09/29/2021 - 11:28am

See nine unique open clusters in Cassiopeia while barely moving your telescope.

The post Cassiopeia Cornucopia — Pretty Little Clusters All in a Row appeared first on Sky & Telescope.

Categories: Astronomy

What Is a Quasar?

Tue, 09/28/2021 - 2:57pm

A quasar is a supermassive black hole gorging on gas in the heart of a distant galaxy.

The post What Is a Quasar? appeared first on Sky & Telescope.

Categories: Astronomy

Addressing a Gap in Our Knowledge of Black Holes

Tue, 09/28/2021 - 9:37am

Gravitational waves offer a test of whether supernovae can produce black holes between 55 and 120 times the Sun's mass.

The post Addressing a Gap in Our Knowledge of Black Holes appeared first on Sky & Telescope.

Categories: Astronomy

60-second Astro News: Magnified Galaxies Provide Window to Early Universe

Mon, 09/27/2021 - 1:49pm

Astronomers use cosmic magnifying lenses to peer into the universe's distant past.

The post 60-second Astro News: Magnified Galaxies Provide Window to Early Universe appeared first on Sky & Telescope.

Categories: Astronomy

This Week's Sky at a Glance, Sept. 24 – Oct. 2

Fri, 09/24/2021 - 9:48am

Jupiter and Saturn shine in the south-southeast at dusk, Venus low in the southwest. They're all close to the ecliptic, so a straight line from Jupiter through Saturn points almost exactly to Venus. Don't believe it? Stretch a string tightly between your hands wide apart, hold it up to the three planets, and see for yourself!

The post This Week's Sky at a Glance, Sept. 24 – Oct. 2 appeared first on Sky & Telescope.

Categories: Astronomy

Mars Hosted Supervolcanoes in the Ancient Past

Fri, 09/24/2021 - 9:47am

Scientists have found massive ash deposits that formed over millions of years of volcanic super-eruptions, the first evidence for such explosive activity on Mars.

The post Mars Hosted Supervolcanoes in the Ancient Past appeared first on Sky & Telescope.

Categories: Astronomy

Hail-like “Mushballs” May Fall on All Our Giant Planets

Thu, 09/23/2021 - 4:24pm

"Mushballs," first inferred to exist on Jupiter, may fall within the atmospheres of all the solar system's giant planets.

The post Hail-like “Mushballs” May Fall on All Our Giant Planets appeared first on Sky & Telescope.

Categories: Astronomy

Supernova Blasts Hollowed Out "Giant Cavity" in Space

Thu, 09/23/2021 - 8:00am

Some 10 million years ago, dying stars cleared a giant cavity in space and ultimately inspired a new generation of star formation.

The post Supernova Blasts Hollowed Out "Giant Cavity" in Space appeared first on Sky & Telescope.

Categories: Astronomy

Shredded Star Reveals Elusive Middle-Mass Black Hole

Wed, 09/22/2021 - 3:51pm

Astronomers have used the death of a star to uncover details about a hidden intermediate-mass black hole.

The post Shredded Star Reveals Elusive Middle-Mass Black Hole appeared first on Sky & Telescope.

Categories: Astronomy

Misfit Meteorite Sheds Light on Solar System History

Tue, 09/21/2021 - 4:06pm

Scientists have discovered the first meteorite that doesn't fall into one of two fundamental groups. The meteorite provides a unique glimpse into the era of asteroid formation and migration.

The post Misfit Meteorite Sheds Light on Solar System History appeared first on Sky & Telescope.

Categories: Astronomy

NASA Announces Moon Landing Site for VIPER Mission

Tue, 09/21/2021 - 12:37pm

NASA’s VIPER rover will land and search for water ice in the unexplored Nobile region at the Moon's south pole.

The post NASA Announces Moon Landing Site for VIPER Mission appeared first on Sky & Telescope.

Categories: Astronomy

The Last Wildflowers: Globular Clusters Greet Autumn

Tue, 09/21/2021 - 8:00am

These four globular clusters are easy to find in autumn skies and a perfect way to welcome the season.

The post The Last Wildflowers: Globular Clusters Greet Autumn appeared first on Sky & Telescope.

Categories: Astronomy

CUPID Sun-Earth Space Weather CubeSat to Launch With LandSat-9

Mon, 09/20/2021 - 4:13pm

A small mission will hitch a ride to space in late September to study interactions at the Earth-Sun boundary.

The post CUPID Sun-Earth Space Weather CubeSat to Launch With LandSat-9 appeared first on Sky & Telescope.

Categories: Astronomy

Infant “Hot Neptune” Provides Clues to Its Birth

Mon, 09/20/2021 - 8:56am

How’d a nice young ice giant end up in such a hot orbit? Scientists investigate the mysterious exoplanet AU Microscopii b.

The post Infant “Hot Neptune” Provides Clues to Its Birth appeared first on Sky & Telescope.

Categories: Astronomy

This Week's Sky at a Glance, September 17 – 25

Fri, 09/17/2021 - 10:00am

The waxing gibbous Moon shines with Jupiter and Saturn on its way to full. And as summer turns to fall, Deneb replaces Vega as the zenith star after dusk.

The post This Week's Sky at a Glance, September 17 – 25 appeared first on Sky & Telescope.

Categories: Astronomy

60-second Astro News: Solving Supernova Mysteries

Fri, 09/17/2021 - 9:31am

This week, astronomers have solved one supernova mystery and predicted a new one — to be solved in 2037.

The post 60-second Astro News: Solving Supernova Mysteries appeared first on Sky & Telescope.

Categories: Astronomy

Getting Started in Planetary Imaging

Thu, 09/16/2021 - 9:02am

It's planet season! Here are some tips to help you start imaging the giant planets while they're in easy view.

The post Getting Started in Planetary Imaging appeared first on Sky & Telescope.

Categories: Astronomy

Asteroid Pallas Makes a Point in Pisces

Wed, 09/15/2021 - 10:07am

Spice up your fall observing with a dash of Pallas and nibble of Neptune. Both planet and asteroid are easy to spot in a small telescope.

The post Asteroid Pallas Makes a Point in Pisces appeared first on Sky & Telescope.

Categories: Astronomy

Amateurs Spot New Impact Flash at Jupiter

Tue, 09/14/2021 - 2:26pm

An amateur astronomer has discovered a possible new impact flash in Jupiter's equatorial region. Observers may yet see the dark impact scar.

The post Amateurs Spot New Impact Flash at Jupiter appeared first on Sky & Telescope.

Categories: Astronomy