Space News & Blog Articles

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Mars Orbiters Will Have Front-row Seats to Interstellar Comet

Spacecraft orbiting the Red Planet will aim a suite of instruments at Comet 3I/ATLAS to capture details about this enigmatic object.

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Two Bright Comets Converge on Northern Hemisphere Skies

After a dearth of bright comets earlier this year, we look forward to an exciting month ahead.

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October Podcast: Pegasus Leads the Way

Pegasus is a large, distinctive constellation that’s easy to spot. During October, you can use it — along with Saturn — to find some amazing celestial sights in their vicinity. Get all the details lots more stargazing info by downloading this month’s Sky Tour podcast!

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Music and Science Unite in the Work of Cosmologist Stephon Alexander

A fight against conventionality has driven cosmologist Stephon Alexander on a groundbreaking journey through theoretical physics.

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Water Worlds Might Be Few and Far Between

Primordial chemistry might destroy most of the water on sub-Neptunes; if so, there could be far fewer “water worlds” than previously thought.

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NASA's VIPER Mission Has Found Another Ride to the Moon

VIPER, a water-seeking rover, has gotten a new lease on life, with a new launch vehicle and lander announced by NASA.

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This Week's Sky at a Glance, September 26 – October 5

The waxing crescent Moon crosses Scorpius on its way to a meetup with Saturn, while the Moon's own sunrise line unveils more and more lunar lands for telescopes.

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NASA Launches Three Missions to Observe the Sun

A new heliophysics mission seeks to unlock the secrets of the region where the solar wind collides with cosmic radiation.

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Astronomers Spot Rare Einstein Cross — and a Massive Clump of Dark Matter

The discovery of a rare Einstein Cross — five images of the same galaxy — reveals a trillion-solar-mass dark matter clump.

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Bright Nova Flares Near Alpha Centauri

An Australian amateur has discovered a binocular nova on the first day of fall, visible to viewers in the Southern Hemisphere.

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Environmental Exclusions Proposed for U.S. Satellite Industry

In a move that’s concerning astronomers and environmental groups alike, the Federal Communications Commission (FCC) has proposed reducing environmental oversight of space-based operations.

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This Week's Sky at a Glance, September 19 – 28

On these dark evenings the Perseus Double Cluster and the Andromeda Galaxy, M31, await in the northeast. They're only two fist-widths apart.

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Early Galaxy Hosts Black Hole with the Mass of 50 Million Suns

Astronomers using the James Webb Space Telescope have confirmed that, just 800 million years after the Big Bang, there is a galaxy that contains a supermassive black hole — and not much else.

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Last Call for a Remarkable Titan Shadow Transit

Titan joins its shadow for a "grand finale" this October.

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Did Asteroids Once Rain Down on Earth?

A surge of asteroids might have peppered the inner solar system some 800 million years ago, in a short-lived shower that left its mark — literally — on Earth and its neighbors.

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Why We Look Up: Simply Stargazing

Whether you end up catching a falling star or not, meteor shower vigils offer time with the stars.

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From the Sun to the Stars, Astronomy in Photos

New observations reveal turbulent flows in the supernova remnant Cassiopeia A and in the solar corona.

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Scientists Release the Latest Gravitational-wave Detections

The number of gravitational-wave signals has just doubled with the release of the newest catalog of events.

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A New Kind of Satellite Could Damage Your Eyes

Reflect Orbital plans to launch gigantic satellites to reflect sunlight into regions where night has already fallen, potentially harming eyes, altering sleep, and blocking the starry sky.

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Attending This Year's Season of Star Parties

S&T editors attended star parties in the past months in various locations around the country to observe with fellow stargazers.

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Best Evidence Yet for Past Life on Mars?

The Perseverance has found compounds associated with life on Earth. But whether they indicate life on Mars awaits sample return.

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