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Stars and constellations looking south. <a href="">Larger views</a>. Illustrations: Aileen O'Donoghue
Stars and constellations looking south. Larger views. Illustrations: Aileen O'Donoghue

The night sky in late summer

Late summer is a great time, on a clear night, to look into the middle of the Milky Way.

Todd Moe talks with St. Lawrence University astronomer Aileen O'Donoghue for a tour of other celestial delights in the late summer sky -- Mars and Saturn at night, and Venus and Jupiter in the early morning hours.  Go to full article
Observing the moon. Photo: <a href="">NASA</a>, Creative Commons, some rights reserved

Let the moon be your guide

So much to see in the sky these nights, including a view into the center of our galaxy. That's where radio astronomers can see a bunch of stars orbiting the big black hole at its heart.

St. Lawrence University physics professor and astronomer Aileen O'Donoghue gives Martha Foley the low down on the summer sky. Planets: Mars, Saturn and Venus; constellations: Scorpius and Sagittarius; and stars: Antares, Arcturus, Zubenelgenubi and Zubeneschamali, among others.

She says the Moon is our guide for lots of the highlights, once the evening light fades. It lingers long these days. Enjoy while you can; we're just past the latest sunset of the year and we should notice a real "gain" in darkness in the coming weeks.  Go to full article
Summer solstice sunset at Stonehenge. Photo: <a href="">Alex Clark</a>, Creative Commons, some rights reserved

In the summer night sky: Solstice, aphelion, planets and skywatching events

The Summer Solstice is this Saturday, and there's plenty to see in the summer night sky. St. Lawrence University astronomer Dr. Aileen O'Donoghue joins Todd Moe for a chat about the start of summer and a great season to view various planets in the pre-dawn and dusk skies.  Go to full article
Half the planets are visible right now--the back row (Jupiter and Saturn) and the front (Mars and Mercury). Aileen says five are visible, actually, if you just look down. Photo: <a href="">Lsmpascal</a>, Creative Commons, some rights reserved

Planets, planets, planets: who's up and where

St. Lawrence University physicist Aileen O'Donoghue says the planets are the big news of the night sky just now. Between Mercury (just up in the northwest), Jupiter in the...  Go to full article
Apparent retrograde motion of Mars in 2003. Animation: <a href="">Eugene Alvin Villar</a>, Creative Commons, some rights reserved

Spring comes to the solar system

St. Lawrence University physicist Aileen O'Donoghue stopped by the NCPR studio this morning with an update on all the ways we can chart the change of season without ever...  Go to full article
This year's "wobbly" polar vortex (left) compared to last year's more "compact" vortex. Image: NOAA

What's up in the sky, and what's up with the weather

The night sky, and so much more today from St. Lawrence University Physics professor Aileen O'Donoghue.

In fact it's a double-header today: the sky, and the...  Go to full article
Crescent moon with Venus and Jupiter near. Photo: <a href="">harshanm</a>, Creative Commons, some rights reserved

Heads-up, star-gazers! Venus is back

Lots of news from St. Lawrence University astronomer Aileen O'Donoghue this morning. She stopped by the NCPR studios to share the monthly update with Martha Foley.
...  Go to full article
Jupiter and the four Galilean moons. From left: Europa, Jupiter, Io, Ganymede, Callisto. Photo: <a href="">Jeremy Stanley</a>, Creative Commons, some rights reserved

News of the cosmos: perihelion, Jupiter's moons and more

In the deep, deep of winter, we've lost our view of Venus, but we're gaining daylight. St. Lawrence University astronomer Aileen O'Donoghue reminds Martha Foley of the good...  Go to full article
Time lapse of Comet ISON's slingshot around the sun (white circle) on Thanksgiving Day. After the close encounter, not much was left. Photo: <a href="">NASA</a>

In the night sky as winter approaches

Astronomy Aileen O'Donoghue talks with Martha Foley about the late fall sky.

Comet ISON's anticipated big display fizzled after a too-close encounter with the...  Go to full article
Comet ISON as seen by the Hubble Space Telescope in April. Photo: NASA

In the night sky: planets, stars, even a comet on the way

We're "gaining dark" as winter approaches. That's good news for astronomer Aileen O'Donoghue. There's just more and more time to get outside and see the stars and planets now...  Go to full article

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