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Planet-forming disk

Milky Way

Close Encounters in the Milky Way — and What They Mean for Planets

New research shows stellar flybys are common in our galaxy’s crowded center. That could have both good and bad (but mostly bad) effects on growing planets.

Lemmon in bloom

Explore the Night with Bob King

Anticipation Grows for Comets NEOWISE and Lemmon

Two comets spark excitement for the coming week — NEOWISE might reach naked-eye visibility at dawn, while Lemmon will be visible in binoculars at dusk.

Moon-Jupiter-Saturn in July 2020

Night Sky Sights

July 2020: Welcome Jupiter & Saturn

July's 11-minute Sky Tour astronomy podcast describes what to see in the summer sky in a casual, engaging way that your whole family can enjoy.

Venus's June 3rd transit across solar corona

Solar System

Venus Passes in Front of the Solar Corona (VIDEO)

Two astronomers captured the silhouette of Venus as it passed in front of the solar corona.

a child outside at night catching fireflies with a net

Saving Dark Skies - How to Help

Photographers “Capture the Dark” with Stunning Images of the Night

Stunning images of the night remind us why we need to protect dark skies. See the photos that won the International Dark-sky Association's contest.

NICER mounted on the International Space Station

Spacecraft and Space Missions

NASA to Use Pulsar Navigation for Deep Space Missions

NICER and SEXTANT demonstrate XNAV pulsar navigation system that may be used on Artemis.

black hole binary in AGN disk

The Black Hole Files with Camille Carlisle

Black Hole Collision May Have Caused Burst of Light

Astronomers think they’ve detected a flash created by the merger of two black holes.

Solar flare

Solar System

New Evidence for Nanoflares?

Astronomers have spotted weak bursts of low-frequency radio emission coming from all over the Sun.

visualization of GW190814 gravitational-wave event

The Black Hole Files with Camille Carlisle

Gravitational Wave Detectors Find Mystery “Mass Gap” Object

Astronomers have caught a black hole colliding with a mysterious companion that might be either one of the most massive neutron stars or the smallest black hole ever detected.

Super-Earth Family Portrait

Exoplanets

Three Nearby Exoplanets to Explore

A trio of nearby exoplanets make tempting new targets for next-gen telescopes.

Asteroid illustration

Solar System

Exploring Links Between Nearby Asteroids

In preparation for the launch of Destiny+, a new study reveals that two near-Earth asteroids may share the same parent.

Erosita's first all-sky X-ray survey

Black Holes

First All-sky Map from eRosita

The first all-sky X-ray map to be released in 30 years reveals new wonders of the hot and energetic universe.

Magnetar

Stellar Science

Astronomers Discover a Newborn Magnetar and a New Cosmic Beat

This week, astronomers announce a newborn magnetar and a fast radio burst that's bursting to a beat.

Two crescents meet

Celestial Objects to Observe

Watch the Moon Pair Up with Venus on June 19th

Two crescents — the Moon and Venus — meet in the sky in the wee hours of June 19th.

Noctilucent clouds in British Columbia

Daylight Phenomena

Nights of Noctilucent Clouds

Noctilucent clouds shimmer high in the sky during summer twilight at northerly latitudes.

Ursa Major Arc

Milky Way

Astronomers Discover Huge Circular Arc Near the Big Dipper

The 30-degree circular arc is likely a shock front expanding from a star that exploded some 100,000 years ago.

Four sightlines through the Milky Way halo

Milky Way

The 10 Million-Degree Gas Around the Milky Way

New observations show ultra-hot gas around the Milky Way. Stellar explosions may have driven this gas out of our galaxy.

New Horizon

Spacecraft and Space Missions

New Horizons' "Alien View" from the Outer Solar System

NASA's New Horizons mission deep in the Kuiper Belt has measured the parallax to two nearby stars with the help of Earth-based observers.

InSight

Spacecraft and Space Missions

Mars "Mole" Is in the Ground (Again)

After months of careful work, NASA's Insight mission has its mole burrowed in the Martian soil.

supermassive black hole with accretion disk

The Black Hole Files with Camille Carlisle

Black Holes Grow by Gas, Not Mergers, Most of Their Lives

Calculations suggest how black holes have amassed mass and predict what the black holes’ spins should be if this picture is correct.

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