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Comet 29P/Schwassmann-Wachmann 1 Blows Its Top . . .…

Comet 29P/Schwassmann-Wachmann 1 has gone into outburst again, wracked by yet another eruption of gas and dust. See it while you can! 

A Constant Comet

Comet 29P/Schwassmann-Wachmann 1 exhibits its classic lopsided coma on July 31 during its most recent outburst. Discovered photographically in 1927 by German astronomers Arnold Schwassmann and Arno Arthur

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Etoiles de Dormillouse c’est partis !!!

Depuis mercredi et encore pour 2 jours (vendredi 29 et samedi 30) les étoiles de Dormillouse battent leur plein…

ATTENTION PAS DE SEANCES D’OBSERVATIONS LE JEUDI 28 JUILLET

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– tous les après-midis (16h à 18h) : observation du Soleil avec plusieurs télescopes et dans diverses longueurs d’onde, permettant … Lire la suite

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Tour August’s Sky: Perseids & Planets Aplenty

Download or play Sky & Telescope‘s astronomy podcast, and you’ll get a guided tour of the night sky. In early evening look for Mars and Saturn embedded in Scorpius toward south, and key an eye out for Perseid meteors.

Mars-Saturn-Antares in August

During August, the positions of Mars and Saturn change with

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Students Discover a Galactic Eye of Horus

Undergraduate students in Japan stumbled on a rare lensing of two distinct background galaxies.

Eye of Horus in pseudo color. Enlarged image to the right. The yellow object at the center is a galaxy about 7 billion light-years away and bends the light from two background galaxies. NAOJ

Eye of Horus in pseudo color. Enlarged image to the right. The yellow object at the center is a galaxy about 7 billion light-years away and bends the light from two background galaxies.
NAOJ

I don’t

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Delta Aquariids Kick Off Summer Meteor Showers

The meteors are coming! Three annual meteor showers are already active and guaranteed to spark up your summer nights. 

Delta Aquariid radiant

The Delta Aquariid meteor shower peaks in late July. All the meteors appear to streak away from a spot called the radiant, which lies about 10° above the bright star Fomalhaut and

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Delta Aquarids Kick Off Summer Meteor Showers

The meteors are coming! Three annual meteor showers are already active and guaranteed to spark up your summer nights. 

Delta Aquarids

The Delta Aquarid meteor shower peaks this week. This view shows the sky around 1:00 a.m. local time.  All the meteors appear to streak away from a spot called the radiant, which lies

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NASA’s K2 Mission Confirms 100+ Exoplanets

Kepler’s K2 mission has confirmed 104 new exoplanets — including a rocky, four-planet system.

An artist’s concept of the four rocky planets near M dwarf star K2-72 discovered by K2. Two of these are in the “habitable zone”, where liquid water may be present on the surface.   NASA / JPL

An artist’s concept of the four rocky planets near M dwarf star K2-72 discovered by K2. Two of these are in the “habitable zone”, where liquid water may be present on the surface.
NASA / JPL

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Missing Craters on Ceres

The dwarf planet has a paucity of big pockmarks because it has somehow erased them.

Ceres and its plain

Shown north down in this false-color image, Ceres has many craters, but few large ones. Its largest is Kerwan (280 km wide), the rims (red-yellow) and central depression (blue) of which are clear in this

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Dark Streaks on Mars Revisited

New research on seasonal streaks in Martian canyons provides evidence against underground pools of water.

The white arrows point out the seasonal dark streaks, called recurring slope lineae (RSL), on the surface of Mars. The Valles Marineris region has the densest population of streaks on the Red Planet. NASA / JPL-Caltech / University of Arizona

The white arrows point out the seasonal dark streaks, called recurring slope lineae (RSL), on the surface of Mars. The Valles Marineris region has the densest population of streaks on the Red Planet.
NASA /

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Soirée d’observation au Mohair du moulin

Le lundi 18 juillet nous sommes allés au Mohair du moulin (Saint Sauveur Gouvernet, 26)  dans le cadre des fermes sous les étoiles dans les Baronnies provençales. Malgré une presque pleine Lune, nous avons pu faire une très belle observations des planètes (Jupiter, Mars et Saturne), la lune et quelques … Lire la suite

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Mars 2020 Rover Construction Moves Ahead

The Mars 2020 rover reaches a third milestone on the path to the launch pad.

Mars 2020 rover

An artist’s concept of the Mars 2020 rover in action.
NASA

Things are getting real now. Last week, NASA announced that it will proceed with the final design and construction of the Mars 2020 rover.

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Antonín Rükl, 1932–2016

A world-renowned lunar cartographer, whose beautiful atlases have become prized possessions, has died at age 83.

Antonín Rükl and Cena Františka Nušla award

Known worldwide for his lunar cartography, Antonín Rükl received Cena Františka Nušla in 2012 — the Czech Republic’s highest award for astronomical achievement.
Vladimír Libý / Prague Planetarium

Antonín Rükl, noted lunar cartographer, selenographer,

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