SUNSET: 
August 2019: Stars of Summer
Download August's Sky Tour astronomy podcast for tips on observing the Perseid meteor shower and the key planets, stars, and constellations in the evening skies of summer.
August Will Have Two New Moons! What’s the Big Deal?
First there were "blue Moons;" now there are "black Moons." What do these terms mean . . . and do they matter?
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.
Galactic Center Gravity Test Confirmed
A second team of astronomers has now confirmed the light from a star passing near our galaxy’s central black hole behaved as predicted by Einstein’s theory of gravity.
Tension Over Hubble Constant Continues
A new measurement fuels an ongoing debate about the rate at which today’s universe is expanding.
India Heads to the Moon With Chandrayaan 2
India enters the 21st-century race to the Moon with its Chandrayaan 2 mission.
Apollo's 50th: A Look Back and a Look Forward
On the 50th anniversary of the Moon landing, we take a look back at the history of the first landing and forward, toward NASA's Gateway and beyond.
Infographic: (Back) To the Moon
Takes a look at what we can expect to see in the next five years of Moon exploration with Sky & Telescope's infographic from the July 2019 issue.
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…
Celebrate Apollo 11 with a Visit to Armstrong, Aldrin and Collins Craters
Find the craters named for the three astronauts who flew the first manned mission to land on the Moon.
German-Russian Astronomy Satellite Launches
Spektrum-Röntgen-Gamma, a long-delayed and much-modified X-ray astronomy package, launched successfully from the Kazakh Steppe on Saturday.
Live from the Moon: How Earth Saw the First Steps of Apollo 11
Neil Armstrong's and Buzz Aldrin's first steps on the Moon changed the world. But that the world would see them wasn't a given.
Thirty Meter Telescope Set to Begin Construction
Hawaiian Governor David Ige and the Thirty Meter Telescope International Observatory have announced that construction of the Thirty Meter Telescope will begin the week of July 15th.
Meet Canopus, the Second Brightest Star
The second-brightest star after Sirius, Canopus is visible in southern skies, shining out of the constellation Carina.
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.
Exomoon or No Exomoon?
Last October, the first discovery of a potential exomoon was announced. But is Kepler-1625b-i an actual moon in another solar system? Or just an artifact of data reduction?
Astronomers Identify Host Galaxy of a Third Radio Flash
Astronomers have narrowed down the location of a third "fast radio burst" to a galaxy very like the Milky Way.
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.
From the Frontline of Totality: Sky & Telescope Reports
Thousands of spectators, professional astronomers, and several Sky & Telescope editors traveled to see totality from the ground — and sky.
Where to Watch the July 2, 2019 Total Solar Eclipse Online
Whether cloudy skies or airfare prevent you from seeing the total solar eclipse on July 2nd, you can still see totality via one of the multiple webcasts we compile here.
