41–60 of 823 results
Loki Patera

Solar System

When Will This Trickster Volcano Erupt?

Loki, a faraway volcanic feature on Jupiter’s moon Io, is acting up and planetary scientists want to know why.

Interstellar Comet Borisov

Explore the Night with Bob King

Will Amateurs Be Able to See the New Interstellar Comet?

Only the second object thus far to visit the solar system from interstellar space, Comet Borisov is expected to reach perihelion in December. What can we see now?

Saturn's Rings

Solar System

Planetary History Written in Saturn’s Rings

Saturn is subtly pulsing and oscillating — and those oscillations impose a pattern on its rings that could tell us about the planet’s history.

Curiosity selfie

Solar System

A Possible Solution to Mars’s Methane Problem

A small amount of seepage could explain conflicting measurements of methane in the Martian atmosphere.

Solar System

Image Sleuth Spots "Churyumoon" Around Rosetta's Comet

A tiny, 4-meter fragment dubbed Churyumoon has been spotted orbiting Comet 67P Churyumov-Gerasimenko, which the Rosetta mission visited in 2014–2016.

Artist's concept of Beta Pictoris system

Exoplanets

Beta Pic's New Planet, Jupiter’s Fuzzy Core & An Ancient Star

Astronomers announce another planet around Beta Pictoris, simulations explain Jupiter's large and fuzzy core, and observations reveal an ancient star.

Spacecraft and Space Missions

NASA Selects Final Four Asteroid Landing Sites for Osiris-REX

The Osiris-REX spacecraft will sample one of four sites on the asteroid Bennu in July 2020.

Yutu 2 makes tracks

Spacecraft and Space Missions

New Images from China's Chang'e 4 as Eighth Lunar Day Ends

China’s Chang’e 4 mission is continuing its science and exploration work on the farside of the Moon, having completed its eighth lunar day of activities on Wednesday.

Fireball Over Ontario

Celestial News & Events

Fireball May Have Dropped Meteorites in Ontario

A lime-green meteor as bright as the full Moon streaked across Canadian skies on July 24th and may have delivered free samples from the asteroid belt.

lander and rover

Spacecraft and Space Missions

India Heads to the Moon With Chandrayaan 2

India enters the 21st-century race to the Moon with its Chandrayaan 2 mission.

Buzz Aldrin and the first ALSEP

Solar System

The Science of Apollo

Apollo 11 broke new ground for exploration, but along the way NASA squeezed as much science as it could out of this and subsequent missions landing on the Moon. From President John F. Kennedy’s 1961 mandate to the moment when Apollo 17 departed the Moon in 1972, Apollo was about…

Orbit of asteroid 2019 LF6

Solar System

Sky-surveying Telescopes Sweep Up Near-Earth Asteroids

Discoveries include a near-Earth asteroid with the shortest “year” and another found hours before it burned up in Earth’s atmosphere.

HP3 cropped

Solar System

A Strategy to Get the Mars Insight Lander Back in the Drilling Business

Insight's robotic arm has uncovered the lander's "mole," as NASA and German aerospace engineers work to get it drilling once again.

Illustration of proposed Titan lander

Spacecraft and Space Missions

We’re Going to Titan! Dragonfly Drone Will Explore Saturn’s Biggest Moon

NASA has selected its next New Frontiers mission: Dragonfly, a rover-sized drone will begin ‘coptering around Titan in 2034.

Solar wind (art)

Solar System

Exploring the Solar System: Mission Updates

Space agencies have selected two solar missions and a “comet interceptor” for development and launch.

Topography map of South Pole-Aitken

Solar System

Huge Mass Found Under Moon's Largest Basin

Does the massive metallic core of a primordial impactor lie buried under the South Pole-Aitken basin on the lunar farside?

Taurid Swarm Under Earth

Solar System

Astronomers Stalk the "Taurid Swarm"

If theorists are right, next month observers should spot a cluster of potentially hazardous asteroids as they cruise past Earth.

Two planets colliding

Solar System

Could a Long-Ago Collision Explain Our Two-Faced Moon?

New research shows that a planetoid impact could have made our Moon asymmetric.

'Oumuamua

Solar System

Was ‘Oumuamua a Fragment from a Disintegrated Comet?

A new study suggests that ‘Oumuamua’s strange trajectory back out to interstellar space can be explained if the object had the density of air.

Taurus-Littrow Valley

Solar System

Apollo-era Data Reveal Moon’s Tectonic Activity

A new look at old seismic data gathered during the Apollo missions reveals young active faults as a possible origin of shallow moonquakes.

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