SKYWATCH: VENUS AND JUPITER TOGETHER AT LAST, DO WE NEED ASTEROID DAY?, AND MORE

LATEST NEWS

Do We Need “Asteroid Day”?

Are we really doing enough to find asteroids, especially the smaller ones that could destroy a city? A private initiative urges a rapid ramp-up of the search effort — but not everyone agrees.

Volcanoes on Venus: Active or Not?

Hotspots on Venus might be researchers’ long-sought evidence for active volcanoes.

Weighing a Supermassive Black Hole

Combining a novel technique and a world-class telescope, astronomers have measured the mass of the supermassive black hole at the center of barred spiral NGC 1097.

Dust-poor Early Galaxies

New ALMA observations reveal low levels of dust in nine early galaxies, suggesting astronomers should revise some of their calculations.

Dark Galaxies Suffuse the Coma Cluster

Following on a surprising find reported last year, astronomers have now discovered almost 1,000 dark matter-rich galaxies in the Coma Cluster.

Searching for Exoplanet Stratospheres

Researchers identify titanium oxide as a potential molecule at work in exoplanet atmospheres.

OBSERVING HIGHLIGHTS

This Week’s Sky at a Glance, June 26 – July 4

Telescope users in eastern North America can watch for the thin, invisible dark limb of the Moon to occult the 4.1-magnitude star Theta Librae.

Venus and Jupiter: Together at Last

The two brightest planets are gliding closer together in the early evening sky, and their celestial dance culminates with an ultra-close pairing on June 30th.

Tour July’s Sky: Saturn and the Scorpion

Stargazing in July is warm and pleasant. After sunset Venus and Jupiter are together in the west and Saturn is low in the south amid the stars of Scorpius.

 

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