Tag #Astronomy

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forbes.com

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Dec 13, 13:13

Planetary Domino Effect: Sequential Formation Observed Around PDS 70

Using the Atacama Large Millimetesubmillimeter Array (ALMA), astronomers observed a chain reaction of planet formation around the star PDS 70, 367 light-years away, where two existing planets gravitationally shepherd material to potentially form a third planet. This domino effect suggests a sequenti...

Planetary Domino Effect: Sequential Formation Observed Around PDS 70

Using the Atacama Large Millimetesubmillimeter Array (ALMA), astronomers observed a chain reaction of planet formation around the star PDS 70, 367 light-years away, where two existing planets gravitationally shepherd material to potentially form a third planet. This domino effect suggests a sequenti...

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How does the discovery of a sequential planet formation mechanism in the PDS 70 system impact our understanding of planetary system formation?

Astronomers observed a chain reaction in the PDS 70 star system, where two existing planets gravitationally influence a dust clump, potentially forming a third planet. This suggests planets may form sequentially, with earlier planets influencing later ones. The discovery was made using the Atacama Large Millimetesubmillimeter Array (ALMA).

forbes.com

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Dec 13, 20:05

Cosmology's Uncertainties: Questioning Assumptions in the Quest for Knowledge

Kelsey Johnson's "Into the Unknown" (Basic Books, October 15, 2024) explores fundamental cosmological questions, emphasizing the limits of current knowledge and the importance of questioning assumptions and biases in scientific inquiry, using examples like Whitehead and Russell's proof of 1+1=2 to i...

Cosmology's Uncertainties: Questioning Assumptions in the Quest for Knowledge

Kelsey Johnson's "Into the Unknown" (Basic Books, October 15, 2024) explores fundamental cosmological questions, emphasizing the limits of current knowledge and the importance of questioning assumptions and biases in scientific inquiry, using examples like Whitehead and Russell's proof of 1+1=2 to i...

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Quality Education

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What future impact might Johnson's call for more rigorous scientific methodology have on the advancement of cosmological knowledge?

Into the Unknown" projects a future where scientific advancement depends on a more critical approach to evidence and assumptions. By highlighting the limitations of current knowledge and the necessity of questioning fundamental concepts, Johnson implies that future breakthroughs will require greater intellectual rigor and interdisciplinary collaboration, potentially leading to revolutionary advancements in our understanding of the cosmos.

edition.cnn.com

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Dec 12, 19:12

Geminid Meteor Shower Peak: Reduced Visibility Due to Bright Moon

The 2024 Geminid meteor shower peaks between noon and 8 p.m. ET on December 13, offering up to 15 visible meteors per hour, though a nearly full moon will significantly reduce visibility. Optimal viewing is from 9-10 p.m. in any time zone or pre-dawn hours of December 13-14.

Geminid Meteor Shower Peak: Reduced Visibility Due to Bright Moon

The 2024 Geminid meteor shower peaks between noon and 8 p.m. ET on December 13, offering up to 15 visible meteors per hour, though a nearly full moon will significantly reduce visibility. Optimal viewing is from 9-10 p.m. in any time zone or pre-dawn hours of December 13-14.

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What is the origin of the Geminid meteor shower, and why does its visibility vary from year to year?

The Geminids originate from debris shed by asteroid 3200 Phaethon due to its close solar orbit. Earth's passage through this debris field during the first two weeks of December creates the meteor shower. The moon's brightness will reduce the visible meteor count from a potential 40-60 per hour to 10-15 per hour this year.

lemonde.fr

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Dec 5, 10:08

French Astronomer's 12-Year MUSE Project Revolutionizes Astronomical Imaging

Roland Bacon, a CNRS astronomer, spent over 12 years developing MUSE, a spectrograph providing 3D images revealing light composition, leading to discoveries of ancient galaxies and the cosmic web, showcasing the lengthy process of astronomical instrument development.

French Astronomer's 12-Year MUSE Project Revolutionizes Astronomical Imaging

Roland Bacon, a CNRS astronomer, spent over 12 years developing MUSE, a spectrograph providing 3D images revealing light composition, leading to discoveries of ancient galaxies and the cosmic web, showcasing the lengthy process of astronomical instrument development.

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What challenges did Roland Bacon encounter during the development and implementation of MUSE?

Bacon's work highlights the lengthy and complex process of developing cutting-edge astronomical instruments. His journey involved securing funding, collaborating with engineers, and overcoming technical challenges. The success of MUSE demonstrates the importance of long-term investment and persistence in scientific instrument development.

apnews.com

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Nov 20, 04:04

Dark Energy Findings Challenge Cosmological Model

New research from the Dark Energy Spectroscopic Instrument (DESI) challenges the prevailing theory of dark energy, suggesting it may not be a constant force and potentially altering our understanding of the universe's expansion and fate.

Dark Energy Findings Challenge Cosmological Model

New research from the Dark Energy Spectroscopic Instrument (DESI) challenges the prevailing theory of dark energy, suggesting it may not be a constant force and potentially altering our understanding of the universe's expansion and fate.

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What are the potential consequences for cosmology if dark energy is not a constant force?

If dark energy is indeed not constant, this would significantly alter our understanding of the universe's expansion and its eventual fate. While more data is needed to confirm these findings, the implications are profound and could lead to a paradigm shift in cosmology.

cnn.com

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Nov 11, 13:03

Northern Taurids Meteor Shower Peaks

The Northern Taurids meteor shower peaks soon, offering a chance to see fireballs. Learn optimal viewing times and the scientific value of these events.

Northern Taurids Meteor Shower Peaks

The Northern Taurids meteor shower peaks soon, offering a chance to see fireballs. Learn optimal viewing times and the scientific value of these events.

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What is the scientific significance of meteor showers?

Besides being a beautiful spectacle, meteor showers provide valuable information to astronomers. Larger meteorites can offer insights into the formation and origin of our solar system.

bbc.com

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Dec 13, 20:05

2023 Geminid Meteor Shower: UK Viewing Conditions

The Geminid meteor shower, peaking from December 13-14, 2023, offers a vibrant display of up to 150 meteors hourly, originating from an asteroid, visible to the naked eye across the UK despite weather and moonlight.

2023 Geminid Meteor Shower: UK Viewing Conditions

The Geminid meteor shower, peaking from December 13-14, 2023, offers a vibrant display of up to 150 meteors hourly, originating from an asteroid, visible to the naked eye across the UK despite weather and moonlight.

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What are the key characteristics of the 2023 Geminid meteor shower, and what is its peak viewing period?

The Geminid meteor shower, peaking between December 13-14, offers a spectacular display of up to 150 meteors per hour, visible to the naked eye. These meteors, unlike most originating from comets, stem from an asteroid, producing vibrant multi-colored streaks due to elements like sodium and calcium. This year, however, a full moon and varied weather conditions across the UK will impact visibility.

npr.org

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Dec 12, 13:11

Full Moon to Dim Geminid Meteor Shower

The Geminid meteor shower, peaking late Friday and early Saturday, will be significantly impacted by the full Cold Moon, reducing visibility from 120 meteors per hour to approximately 15 in the U.S. due to the moon's brightness.

Full Moon to Dim Geminid Meteor Shower

The Geminid meteor shower, peaking late Friday and early Saturday, will be significantly impacted by the full Cold Moon, reducing visibility from 120 meteors per hour to approximately 15 in the U.S. due to the moon's brightness.

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How will the full Cold Moon affect the visibility of the Geminid meteor shower?

The Geminid meteor shower, peaking late Friday and early Saturday, will be significantly impacted by a full Cold Moon, reducing visibility by 50-75%. This means instead of the usual 120 meteors per hour, observers in the U.S. might only see about 15.

abcnews.go.com

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Dec 11, 19:12

Geminid Meteor Shower Peaks With Reduced Visibility Due to Bright Moon

The Geminid meteor shower, originating from asteroid 3200 Phaethon, peaks on December 14 with an expected 15 meteors per hour due to a nearly full moon, offering less visibility than usual but still showcasing fireballs from the rocky debris.

Geminid Meteor Shower Peaks With Reduced Visibility Due to Bright Moon

The Geminid meteor shower, originating from asteroid 3200 Phaethon, peaks on December 14 with an expected 15 meteors per hour due to a nearly full moon, offering less visibility than usual but still showcasing fireballs from the rocky debris.

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How might factors like lunar cycles and atmospheric conditions affect the visibility of future Geminid meteor showers?

The reduced visibility of the Geminids this year, caused by the bright moonlight, highlights the impact of lunar cycles on meteor shower viewing. Future Geminid showers might offer better viewing conditions depending on the moon phase and the amount of atmospheric dust and cloud cover. The next shower, the Ursids, peaks on December 22.

cnnespanol.cnn.com

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Nov 21, 07:04

Solar Orbiter Captures Unprecedented Sun Images

High-resolution images from the Solar Orbiter mission reveal unprecedented details of the Sun's surface, offering insights into solar activity and space weather.

Solar Orbiter Captures Unprecedented Sun Images

High-resolution images from the Solar Orbiter mission reveal unprecedented details of the Sun's surface, offering insights into solar activity and space weather.

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How did the proximity of the Solar Orbiter to the Sun affect the imaging process?

The images are mosaics of multiple individual shots, necessitated by the spacecraft's proximity to the sun and its need for rotational adjustments after each image capture.

edition.cnn.com

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Nov 15, 01:02

Beaver Moon and Leonid Meteor Shower

November's full moon, the Beaver Moon, will be the last supermoon of 2024 and will coincide with the peak of the Leonid meteor shower.

Beaver Moon and Leonid Meteor Shower

November's full moon, the Beaver Moon, will be the last supermoon of 2024 and will coincide with the peak of the Leonid meteor shower.

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What are some tips for observing the Leonid meteor shower?

To view the Leonid meteor shower, find a location with minimal light pollution and face east, keeping the moon out of your direct line of sight. Look towards the lower half of the sky, ideally closer to dawn when more meteors are visible.

abcnews.go.com

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Nov 11, 19:33

Last Supermoon of 2024: When and How to Watch

The final supermoon of 2024 peaks this week, offering a spectacular celestial event. This article details when to view it and provides insights into this phenomenon.

Last Supermoon of 2024: When and How to Watch

The final supermoon of 2024 peaks this week, offering a spectacular celestial event. This article details when to view it and provides insights into this phenomenon.

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When is the last supermoon of 2024?

The last supermoon of 2024 will be visible on Thursday and Friday this week, making its closest approach on Thursday and reaching its full lunar phase on Friday.

Showing 169 to 180 of 182 results