Black Hole Rain
The planned LISA gravitational-wave detector might discover a shower of hundreds of small black holes falling in galactic centers.
Explore the Night with Bob King
Orionid Meteors Fly; Two Moons Shadow Jupiter
Bundle up and enjoy the Orionid meteor shower under moonless skies this week. Don't miss the warm-up act, either, when two of Jupiter's moons pair up in a captivating double-shadow transit.
Astronomy in Space with David Dickinson
First Look at Material from Asteroid Bennu on the Ground
The Osiris-REX sample collection team reveals the first look at material collected from the asteroid Bennu.
Why We Look Up with Jennifer Willis
The Stars Are Waiting
Making room for astronomy in my life has felt like coming home — as if the universe has left a literal light on for me.
Comet 12P/Pons-Brooks (aka the "Millenium Falcon" Comet) Flares Again!
Comet 12P/Pons-Brooks has awakened again from its recent slumbers with a fresh outburst. It's now bright enough to see in a modest telescope.
Explore the Night with Bob King
Comet Hartley Comes Home Again; Gegenschein-gazing
Get acquainted with Comet 103P/Hartley. It's been a dozen years since its last bright apparition. While you're at it challenge yourself to spot the elusive gegenschein.
Astronomy in Space with David Dickinson
Osiris-REX Capsule Returns Samples of Asteroid Bennu to Earth
Samples taken from the asteroid Bennu are now safely on Earth.
Explore the Night with Bob King
Is the Day 12 Hours Long on the Equinox? It's Complicated
The Earth's atmosphere and the large size of the solar disk result in unequal days and nights, even on the equinox.
X-ray, Moon Missions Launch from Japan
In an ambitious mission pairing, Japan launched a next-generation X-ray observatory and an innovative lunar lander.
Why We Look Up with Jennifer Willis
Cosmic Recovery
Maybe deliberate experiences of joy and awe should be standard in any post-op plan.
Explore the Night with Bob King
Action-packed Sky: Saturn, Comet Nishimura, and More
September is Saturn's time to shine. We also check on Comet Nishimura — now at 5th magnitude and still brightening — and look forward to a dramatic asteroid occultation. Not to mention that Jupiter just took another hit.
Astronomy in Space with David Dickinson
India Launches Aditya L1 Solar Observatory
India’s first dedicated solar science mission Aditya L1 heads spaceward.
New Comet Nishimura May Become Naked-Eye Bright
Comet Nishimura is quickly brightening in the morning sky and may be faintly visible with the naked eye next month. And on August 24th observers in North America will be treated to an occultation of Antares.
India’s Chandrayaan 3 Lands on the Moon; Russia's Luna 25 Crashes
In a first, India’s Chandrayaan 3 soft-lands in the lunar south pole region of the Moon.
Black Hole May Have Formed by Direct Collapse
Astronomers may have spotted a supermassive black hole in the early universe that formed when a gargantuan gas cloud imploded.
Cosmic Relief with David Grinspoon
Seeing Through the Smoke
The near-term haze of climate disasters obscures our possible futures. But long-term trends leave room for optimism.
Explore the Night with Bob King
Get Ready for a Great Perseid Meteor Shower
The Perseids are here! With no Moon to spoil the show it's time to break out the lawn chairs, sit back, and watch the comet dust fly.
Russia Heads for the Moon for the First Time Since 1976
The launch of Russia’s Luna 25 lander heralds the nation’s return to lunar and planetary exploration.
Astronomy in Space with David Dickinson
India's Chandrayaan 3 Reaches for the Moon (Updates with Video)
India is headed back to the Moon with its ambitious new Chandrayaan 3 mission.
Contact Briefly Lost with Voyager 2
NASA detected a faint "heartbeat" signal from Voyager 2, after an erroneous command caused the spacecraft to lose contact with Earth.