3221–3240 of 6,731 results
solar filament from the side

Solar System

Resonant Waves Might Heat Corona

Astronomers have detected waves working together in the solar atmosphere, potentially heating the gas through turbulence.

F-CHROMA logo

Celestial News & Events

Call for Solar Observers (Sept. 19–27)

Does your version of stargazing involve pointing your telescope at the Sun? With the right equipment, you can aid a project that aims to catch a solar flare in the act of erupting. The observing campaign is coming up soon: September 19 - 27, 2015.

Spherical mosaic of Pluto

Solar System

Best-yet New Horizons Views of Pluto

NASA's New Horizons spacecraft has returned high-resolution, richly detailed images of Pluto and its moon Charon, revealing surfaces that are confounding in their complexity.

Path of September 2015's partial solar eclipse

Celestial News & Events

September 13th's Partial Solar Eclipse

Residents of southern Africa get to watch the Moon cover part of the Sun not long after (or during) sunrise on Sunday, September 13th.

Stellar Science

Twin Stars Simplify Distance Measurements

A new technique that relies on identifying stellar twins yields a novel way to measure the distances to stars.

Ceres bright spots from HAMO

Solar System

New View of Ceres’ Amazing Spots

The latest image from NASA's Dawn spacecraft reveals structure in the bright spots on the asteroid 1 Ceres.

Direct and indirect light pollution around Madrid

Astronomy and Society

ISS Photos Yield "Cities at Night" World Map

Researchers on the ground have combed through a trove of images taken by orbiting astronauts to reveal unprecedented details about light pollution streaming from Earth's major cities.

New Horizons visits 2014 MU69_f

Solar System

Kuiper Belt Target Picked for New Horizons

A small body known as 2014 MU69, found by the Hubble Space Telescope barely a year ago, will be the next destination for NASA's New Horizons spacecraft.

Gaia14aae, artist's conception

Stellar Science

Amateurs Help Discover Rare Eclipsing Binary

A collaboration of amateur and professional astronomers has uncovered a rare variety of eclipsing binary star - and a supernova in the making.

Before dawn in September 2015

Celestial News & Events

Tour September's Sky: A Lunar Eclipse!

This month's stargazing features pretty planetary treats in the eastern sky before dawn — and the last total lunar eclipse visible until 2018.

globe of mercury

Solar System

Insights from S&T's Family of Planet Globes

Pictures are great, but there's nothing like holding another world in your hands to appreciate its unique characteristics. True confession: even from childhood, I have always been a map junkie. Sure, I use GPS these days, but my car is still stuffed with road maps. The National Geographic Atlas of…

Path of 2017 total solar eclipse

Celestial News & Events

Planning for America's Great American Eclipse in August 2017

Dozens of solar specialists are coordinating outreach activities for a coast-to-coast total solar eclipse that's only two years away.

ring galaxy ESO 179-13

Galaxies

Dwarf Bull’s-eye Galaxy Discovered

Astronomers have discovered that one galaxy of a nearby double-galaxy system has a giant, star-studded ring.

Ancient Mars Lakebed

Solar System

Scientists Find Ancient Lake on Mars

Scientists have discovered an ancient lakebed on Mars.

Experiment set-up

Cosmology

Is Dark Energy a Chameleon?

A lab experiment has all but nixed one of the theories of dark energy, a mysterious force pushing the universe apart.

Asteroid Prospector Flyer prototype

Space Missions

Robotic Flyers: Future of Space Exploration?

Quadcopters, the four-propellered drones that have become a familiar sight in terrestrial skies, may be the next big thing in space exploration.

51 Eridani b

Exoplanets

Direct-Image Discovery of a Young Jupiter

The Gemini Planet Imager has discovered its first exoplanet, a young Jupiter still glowing with the heat of its formation.

IAU Closing

Exoplanets

At the IAU: New Dwarf Galaxy Neighbors & Dark-Sky Sanctuaries

As the IAU General Assembly in Hawaii'i draws to a close, the results were still coming in: a new bevy of dwarf galaxies discovered around the Milky Way, the celebration of the first Dark-Sky Sanctuary, and a new directly imaged exoplanet to boot.

dwarf disk galaxy RGG 118

Black Holes

Teeny Supermassive Black Hole

Astronomers have identified the smallest supermassive black hole ever detected in a galaxy’s center.

Celestial News & Events

Our Late Night Under the Perseids

Meteors bright and faint rewarded patient watchers of the 2015 Perseid meteor shower. And the show continues tonight.