Friday, July 22, 2022

EarthSky | Webb could see biosignatures on distant planets

We are two scientists who study exoplanets and astrobiology . Thanks in large part to next-generation telescopes like James Webb, researchers like us will soon be able to measure the chemical makeup of atmospheres of planets around other stars.

When light bounces off the surface of a material or passes through a gas, certain wavelengths are more likely to remain trapped in the gas or material's surface. This selective trapping of wavelengths of light is why objects are different colors.

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Publisher: EarthSky | Updates on your cosmos and world
Date: 2022-07-22T11:00:38 00:00
Twitter: @earthskyscience
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What is the weather like on the planets Saturn, Uranus, and Neptune?

FARGO — This will finish our weeklong tour of the weather on other planets. The outer planets — Saturn, Uranus, and Neptune — are all gas giants. These planets are much larger than Earth.

Because they are so far from the sun, most of their heat is internal, so there is little or no difference in temperature between the poles and equator on these planets.

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Publisher: Detroit Lakes Tribune
Date: 2022-07-22T10:00:00
Author: https www dl online com john wheeler
Twitter: @DLNewspapers
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What Are Aspects In Astrology? They Explain How Planets Interact

On the most basic level, astrology is about a symbolic relationship between the planets and ourselves. In order to understand that relationship, however, we have to first look at the planets' relationships with one another.

"Aspects are basically the connection that two planets are making with one another," Miami-based astrologer Valerie Mesa tells Elite Daily. "It's how the planets are vibing with one another," she continues. "Are they in harmony, are they in alignment, is there friction?

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Publisher: Elite Daily
Twitter: @elitedaily
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PHOTOS: Ho-Chunk and Planets at Concerts on the Square | Entertainment | captimes.com
Publisher: The Cap Times
Author: RUTHIE HAUGE
Twitter: @CapTimes
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NASA Wants Your Help Designing a Starshade to Observe Exoplanets - Universe Today

The field of exoplanet study has come a long way in recent decades. To date, 5,063 exoplanets have been confirmed in 3,794 systems beyond our own, with another 8,819 candidates awaiting confirmation.

To make this process easier, NASA is designing a hybrid observatory consisting of a “Starshade” that will block out a star’s light so that a ground-based telescope can directly image planets orbiting it.

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Publisher: Universe Today
Date: 2022-07-22T22:00:11 00:00
Author: https www facebook com Storiesbywilliams 205745679447998 ref hl
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KMT-2021-BLG-0171Lb and KMT-2021-BLG-1689Lb: Two Microlensing Planets in the KMTNet High-cadence ...

Follow-up observations of high-magnification gravitational microlensing events can fully exploit their intrinsic sensitivity to detect extrasolar planets, especially those with small mass ratios.

Typically, access is provided across an institutional network to a range of IP addresses. This authentication occurs automatically, and it is not possible to sign out of an IP authenticated account.

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Publisher: OUP Academic
Date: 2022-07-21
Author: Yang Hongjing
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Why doesn't Jupiter have the biggest ring system? - KAKE

    TORONTO ( CTV Network ) -- Three out of the four biggest planets in our solar system have a ring orbiting around them, with Saturn’s stunning, massive disc being the most well-known example.

But if rings are common around larger planets, why doesn’t Jupiter have an impressive ring to rival Saturn’s?

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Bad Astronomy | Gravitational tides may prevent planets from sharing orbits | SYFY WIRE

Here's something I've wondered about from time to time but never had an answer for: Why don't we see two exoplanets sharing the same orbit?

One is theoretical: When you solve the complex equations for the gravitational forces that exist around a small object like a planet orbiting a big object like a star, you find there are five regions of gravitational stability .

Publisher: SYFY Official Site
Date: 2022-07-21T09:00:07-04:00
Twitter: @syfy
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NASA TESS Discovers Two New Huge Extrasolar Planets | Tech Times
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Publisher: Tech Times
Date: 2022-07-19T00:50:00-04:00
Author: April Fowell
Twitter: @TechTimes_News
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