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A ‘Planet Parade,' A ‘Black Moon' And A Meteor Shower: The Night Sky In August 2025

A ‘Planet Parade,' A ‘Black Moon' And A Meteor Shower: The Night Sky In August 2025

Forbes2 days ago
August is one of the best months of the year for stargazing, and 2025 is no exception. Whether you're scanning the eastern sky at dusk or venturing out before sunrise, there's something to see almost every night. The Perseids return, the Milky Way arches high overhead, and a rare 'planet parade' delivers four bright objects in the morning twilight. Here's everything you need to know about the night sky in August 2025:
1. A Full 'Sturgeon Moon'
When: dusk on Friday and Saturday, August 8-9
Where: eastern horizon
This month's full moon will occur early on Aug. 9, but both Aug. 8 and Aug. 9 will offer dramatic moonrises. Look east shortly after sunset to watch the sturgeon moon rise, appearing a lovely orange color.
2. A Conjunction Of Venus And Jupiter
When: before dawn on Tuesday, Aug. 12
Where: east-northeast horizon
In a rare planetary pairing, Venus and Jupiter will be separated by just one degree in the pre-dawn sky. This is a striking sight for the naked eye, with the two brightest planets close together, just above the eastern horizon an hour before sunrise.
3. Perseid Meteor Shower Peaks
When: around midnight, August 12-15
Where: northeast to overhead
The Perseids reach their maximum overnight on Aug. 12-13 evening, but a 91%-lit gibbous moon will wash out all but the brightest. For the best chance, head out before midnight and keep your back to the moon. Better still, wait until Aug. 15, when the night sky will be much darker, and there will still be an elevated rate of meteors.
4. A Planet Parade
When: one hour before sunrise, Sunday to Wednesday, August 17–20
Where: eastern sky
For four consecutive mornings, Jupiter, Venus and Mercury form a graceful arc in the pre-dawn sky. The waning crescent moon moves past them each morning, getting slimmer each day. The highlight comes Aug. 20 when a 9% crescent moon sits next to Venus.
5. Milky Way At Its Best
When: after astronomical twilight, all month
Where: southeast to the zenith
August's moonless evening sky — from Aug. 16-26 — brings some of the clearest views of the Milky Way for northern observers. On moonless nights, trace its arc through the Summer Triangle stars high in the southeast and down to the galactic core near the constellations Scorpius and Sagittarius in the south. Do whatever you can to escape light pollution, using a light pollution map or staying overnight in an International Dark Sky Place.
6. A 'Black Moon'
When: Saturday, Aug. 23
Where: all-sky
Today's new moon has a special name — a seasonal 'black moon,' the third new moon in a season of four. Although not visible itself, its presence means an entire night of dark, moonless night skies ideal for stargazing, astronomy and astrophotography.
7. Venus And The Beehive Cluster
When: before dawn on Sunday, Aug. 31
Where: east-northeast sky
Look east an hour before sunrise to find brilliant Venus. Nearby, through binoculars, you'll spot the faint but pretty Beehive Cluster (M44). This open cluster in the constellation Cancer is one of the most beautiful sights in the night sky — especially when paired with a bright planet.
Wishing you clear skies and wide eyes.
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The meteor shower trio continues in our night skies
The meteor shower trio continues in our night skies

Yahoo

time4 hours ago

  • Yahoo

The meteor shower trio continues in our night skies

What's better than one meteor shower? Three of them sending streaks of light across the night sky at the same time! Each year, during the month of July, our planet Earth plunges into three separate streams of comet debris, each composed of ice and dust that orbits around the Sun. As we fly through these streams, the atmosphere sweeps up the tiny meteoroids directly in our path, which flash by overhead, producing a spectacular trio of overlapping meteor showers. The first of these, the alpha Capricornids, originates from a comet known as 169P/NEAT. Although the meteor shower has been observed for a very long time, its parent body was not discovered until 2005. Originally thought to be an asteroid, further observations revealed weak comet activity when it neared the Sun. We begin to see meteors from the alpha Capricornids in early July each year, radiating out from the constellation Capricornus, in the southern sky. This shower often goes unmentioned and unnoticed, though, as it produces just a handful of meteors each night from early July through mid-August. The radiant of the alpha Capricornids, on the night of the meteor shower's peak, on July 31-August 1. The First Quarter Moon will be in the western sky, setting around midnight. (Scott Sutherland/Stellarium/NASA's Goddard Scientific Visualization Studio) However, despite their rarity, alpha Capricornids tend to be fairly bright, and can even include a few fireballs — exceptionally bright meteors that are easily visible for hundreds of kilometres around on clear nights, even for observers trapped under heavily light-polluted skies. The Perseids are the second of this trio to start. Originating from a comet called 109P/Swift–Tuttle, due to the angle of the meteoroids as they enter the atmosphere, the meteors appear from the direction of the constellation Perseus, in the northern sky. The radiant of the Perseids (the point in the sky the shower appears to originate from) is located in the northeastern sky each night from mid-July through late August. The view in this simulation depicts the night of the peak, on August 12-13, 2025. The phase of the Moon (Waning Gibbous) is shown in the top right corner. (Simulation courtesy Stellarium. Moon phase from NASA's Goddard Scientific Visualization Studio) The third is the Southern delta Aquariids. Although we don't know for sure, this shower appears to come from an oddball comet called 96P/Machholz. The odd thing about this object is that it's apparently unlike any other comet in our solar system, with a unique orbit and chemical composition. It's even possible that it's an alien comet that was long ago captured by our Sun's gravity as it wandered through interstellar space. The meteors from Comet Machholz's debris stream can be traced back to the constellation Aquarius, in the southern sky. Also, due to the specific angle of the comet's path through the solar system, it produces a slightly better show in the southern hemisphere than the north. However, here in Canada, we can still see a decent number of meteors from it, if we know when to look. The radiant of the delta Aquariids is located in the southern sky each night from mid-July through early August. The view in this simulation depicts the night of the peak, on July 30, 2025, although the delta Aquariids peak between the 29th and 31st. The July 30 phase of the Moon (Waxing Crescent) is shown in the top right corner. (Simulation courtesy Stellarium. Moon phase from NASA's Goddard Scientific Visualization Studio) READ MORE: All three of these meteors showers began slowly, producing just a few meteors at their start — the alpha Capricornids in early July, and the Perseids and delta Aquariids around the middle of the month. The end of July was the best time to view the trio. Based on their typical behaviour, by the last few nights of the month, around 20 Perseid meteors per hour would have been streaking out of the northeast, crisscrossing with about 20 delta Aquariids per hour from the southeast. On the night of the 31st, the alpha Capricornids would have added up to 5 more per hour to the overlapping display. With the timing of the Moon's phases, the nights of the 29th, 30th, and 31st were the best time to go out and spot these meteors. This is because the Moon was off in the west throughout the evening and set by midnight. That left the rest of the night with a dark sky for picking out those brief flashes of light overhead. This wider simulation of the eastern sky, on the night of July 31-August 1, 2025, shows the radiants of the Perseid, delta Aquariid, and alpha Capricornid meteor showers in their respective spots. The First Quarter Moon is setting on the western horizon at this time, out of view of the observer. (Scott Sutherland/Stellarium) DON'T MISS: August Update Now that we're into August, the number of Perseid meteors will continue to rise up until the night of the 12th. At the same time, the number of delta Aquariids and alpha Capricornids will ramp down significantly. Thus, total meteor numbers will remain fairly constant over the next week or so, but will more heavily favour the Perseids out of the northeast. There's one caveat to this, though. During the first two weeks of August, the Moon will be casting off quite a bit of light as it passes through its brightest phases — Waxing Gibbous from the 2nd to the 7th, the Full Sturgeon Moon on the 8th-9th, and Waning Gibbous from the 9th to the 14th. The phases of the Moon from July 27 through August 16 reveal why sky conditions may be best for this meteor shower trio at the end of July. (Scott Sutherland/NASA's Goddard Scientific Visualization Studio) Having a dark sky is important for meteor watching, for two reasons: our eyes need to fully adapt to the dark to become sensitive enough to pick up the faintest flashes of light, and the contrast of the mostly-black background of space helps us in spotting the brief meteor streaks. Bright moonlight acts in exactly the same way as urban light pollution, especially on humid summer nights, when the added water vapour in the air easily refracts that moonlight into our eyes. The sky becomes 'washed out', with only the brighest stars remaining visible, and similarly only the brighest meteors tend to be able to pierce that 'veil' of light. Normally, as the Perseids reach their peak on the night of the 12th, observers under clear dark skies have a chance to spot up to 75-100 meteors every hour. This year, we will likely see closer to 40-50 per hour. Weather conditions could reduce that even further. Fortunately, the Perseids are well-known for producing the greatest number of fireballs! Watch below: Perseid fireball captured by NASA all-sky camera Click here to view the video After the peak of the Perseids, we can still spot meteors from the shower as it ramps down, right up until August 24. So, watch for clear skies in your forecast and keep an eye out for meteors and fireballs flashing through the night. (Editor's note: This article has gone through a significant update to include additional information regarding the alpha Capricornids meteor shower and how it will add to the show produced by the Perseids and delta Aquariids.) Thumbnail image produced using the open-source planetarium software, Stellarium. Watch below: What do we know about Interstellar Comet 3I/ATLAS? Click here to view the video Solve the daily Crossword

These Two Simple Interventions May Cut CRC Recurrence Risk
These Two Simple Interventions May Cut CRC Recurrence Risk

Medscape

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  • Medscape

These Two Simple Interventions May Cut CRC Recurrence Risk

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How NASA found ‘city killer' asteroid's new potential target: the moon
How NASA found ‘city killer' asteroid's new potential target: the moon

The Hill

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  • The Hill

How NASA found ‘city killer' asteroid's new potential target: the moon

(KTLA) – Although it won't hit Earth, an asteroid once labeled a ' city killer ' is now back in the spotlight — this time, because it might hit the moon. Nexstar's KTLA spoke with Davide Farnocchia, a navigation engineer at NASA's Jet Propulsion Laboratory who works in the agency's Center for Near-Earth Object Studies. He shared how scientists tracked the 200-foot-long asteroid's shifting path, right up until it slipped out of view — for now. 'You can call it a city killer, but there's no city at risk. The Earth is out of the way,' Farnocchia said. 'But the moon is not.' Asteroid 2024 YR4, first spotted in December 2024, is now being closely monitored as a potential lunar impactor in 2032. 2024 YR4: The 'city killer' that threatened to hit Earth in 2032 Just weeks after its discovery, YR4 made headlines when its odds of hitting Earth spiked to 3.1 percent, making it the most threatening asteroid observed in over two decades. That risk earned it a 3 out of 10 on the Torino scale, a rarely used classification signaling a credible, though uncertain, threat. Farnocchia recalled the moment his team had to alert astronomers of the impact probability. 'We had to notify them and say, 'Look, this object should get higher priority in your schedule for observing asteroids tonight,'' he said. 'We needed more data to hopefully prove that it would move away from the Earth, which is what almost always happens.' But instead of fading from concern, YR4's risk level climbed. By mid-February 2025, the asteroid had a 1 in 32 chance of impacting Earth. An impact of its size could have devastated a metropolitan area if it had struck land. 'YR4 represented the most significant impact risk that we had over the last 20 years,' said Farnocchia. 'However, we communicated early on that the probability would likely drop as we got more data, and that's exactly what happened.' 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NASA says it may be the first such event humans have witnessed with modern instruments. 'An asteroid this large passes this close to Earth only every few thousand years on average, so it's likely that an event like this has not happened at any time in recorded human history,' the organization stated. 'Without a doubt this is the first time it's happened when humans have had the technology to observe it.' How good is NASA at predicting impacts? Very good — and getting better. 'We had a few very small objects discovered before reaching Earth. They burn up harmlessly, but predicting their impacts and locations felt like a big accomplishment,' Farnocchia said. New observation tools and modeling techniques are making it possible to predict not only impact locations, but even recover fragments from impacts. 'Recently, we were able to predict impact locations and recover meteorites, which is kind of interesting because that's a final validation that you predicted the right impact point,' he said. 'One colleague was notified of an impact predicted in Canada, so he just went outside and set up a camera to observe it. That was really cool.' Why it matters While the moon isn't in any real danger, 2024 YR4 has become a key case study for NASA's planetary defense systems. It's the first object since Apophis to climb to a 3 on the Torino Scale, and the first ever tracked with the James Webb Space Telescope, which improved impact projections by nearly 20 percent. 'There is so much I could say about YR4 — it was really interesting to see the orbit behave exactly as we expected,' Farnocchia said. 'I like to see how the predictions evolve with each new set of observations. It's a sign that our models are working well.' NASA expects YR4 to reenter view in 2028 for another round of observations — and possibly another plot twist.

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