Interesting fact: A single of these garden-variety metallic asteroid contains vastly more gold than has ever been mined in the history..

📌Source \ Dark Space🪐

4400

10

A realistic simulation of what would happen in a nuclear war

📌Source \ Dark Space🪐

12678

134

remotejobalerts

August 10, 2024, 15:35

Sun in ultraviolet, and yes that's Venus passing in front of our sun! Credit - Nasa Solar Dynamics Observatory

📌Source \ Dark Space🪐

4977

23

In the vast expanse of the cosmos, few discoveries have captivated us as profoundly as HD 100546 b

This exoplanet, a gas giant of unprecedented size, is situated 353 light years from Earth in the southern constellation of Musca. Discovered in 2014, HD 100546 b has compelled us to reassess the boundaries of planetary size and the complexities of celestial classification.

Comparative Magnitude: Jupiter and HD 100546 b

Jupiter, the largest planet in our solar system, boasts a diameter of ~ 142,000 km (86,870 mi). It is so immense that all other planets in our solar system could fit inside it, with over 1,300 Earths required to match its volume. However, when compared to HD 100546 b, Jupiter's enormity pales in comparison. HD 100546 b has an estimated radius 6.9 times that of Jupiter, making it larger than some stars. This raises intriguing questions about the classification and formation of such massive objects.

Physical Characteristics and Classification.

The mass of HD 100546 b is estimated to be around 752 times that of Jupiter. This staggering mass places it in a gray area between planets and brown dwarfs—substellar objects that are too massive to be considered planets but lack the nuclear fusion capabilities of stars.

The precise nature of HD 100546 b remains a subject of debate. Its mass & temperature range suggest it might be a rare type of planet-mass brown dwarf, challenging traditional definitions & prompting further study into the nuances of celestial classification.

Orbit and Distance from Its Star.

HD 100546 b orbits its parent star, HD 100546, aka KR Muscae, at a distance of 53 AU, nearly twice the distance from our Sun to Pluto. The planet's orbital period is ~ 249 years, indicating a slow journey around its star. Despite receiving only a fraction of the stellar energy that Earth receives from the Sun, HD 100546 b maintains its colossal size & gaseous composition.

Challenges in Observation and Measurement.

Studying HD 100546 b presents significant challenges due to its distance from Earth. The discovery was made using direct imaging, a sophisticated technique that involves separating the faint light of the planet from the bright glare of its host star. This process is akin to spotting a firefly next to a searchlight, highlighting the technical prowess required in contemporary astronomical research. Accurate determination of the planet's size & mass relies heavily on models & theoretical calculations, which can introduce uncertainties.

The Parent Star: HD 100546.

HD 100546 is a B-type pre-main-sequence star, indicating it is hotter, more massive, and more luminous than our Sun. Estimated to be less than 10 million years old, this star is in the early stages of its life cycle and belongs to a class known as Herbig Ae/Be stars. These young, massive stars are surrounded by circumstellar disks of gas and dust, the birthplaces of planetary systems. Observations of HD 100546's circumstellar disk have revealed intriguing structures, such as spiral patterns and gaps, which may indicate the presence of planetary bodies and ongoing planet formation processes.

Implications for Planetary Science.

The discovery of HD 100546 b has profound implications for our understanding of planetary formation & the diversity of worlds that exist in the universe. It challenges preconceptions about the size limits of planets & suggests that the cosmos may harbor even more extreme & unexpected worlds. The existence of such a massive planet in a circumstellar disk rich with formation activity offers valuable insights into the processes that shape planetary systems.

📌Source \ Dark Space🪐

4754

16

This moon phase video from NASA is mesmerizing....

📌Source \ Dark Space🪐

4806

26

remotejobalerts

August 9, 2024, 9:00

The Earth is almost never shown like this, and in the meantime, this is our planet from the side of the Pacific Ocean .

One side of the Earth is almost completely covered with water (the Pacific), while landmass is almost all on the other side.

📌Source \ Dark Space🪐

5433

27

“I, more down to earth, stated that Nietzsche is valid for everyone; everybody understands him; the deluded recover courage by reading him; the revolutionaries conquer again a faith by experiencing him.”

— Benito Mussolini

854

9

NASA shared this video showing carbon dioxide emissions moving through earth's atmosphere. The video was created by Supercomputers, using insane amounts of Data from satellites.

📌Source \ Dark Space🪐

14405

67

Falcon 9 lands on the Just Read the Instructions droneship

📌Source \ Dark Space🪐

5419

10

remotejobalerts

July 30, 2024, 19:00

⚽️ Todays Fixed games with odds - 101✅

👨🏻‍💻 More information - @Bob_DarkwebF

5379

3