Outer Space 🚀

2023-05-19 14:00:53 A "hellish" planet, with a hotter surface than some stars, has been discovered

The new planet was named TOI-1431b and has a rather impressive size. It is about three times more massive than Jupiter and located near a bright star that heats its atmosphere during the day to 2 700 ° C. At night, TOI-1431b cools down to only 2,300 °C.

The author of the study said that the conditions on this planet are really "hellish". No life forms can exist on it. Most of the metal reserves on the object evaporated under the influence of extreme temperatures. Открыть/Комментировать

2023-05-18 21:00:39 Dyson Sphere

In 2015, astronomer Tabetha Boyajian reported that a star 1,400 light-years away sometimes dimmed quite a bit. One explanation was the assumption that the star is surrounded by a Dyson sphere.

The idea, proposed many years ago by physicist Freeman Dyson, is that advanced civilizations may be building giant structures in space made up of a swarm of solar panels. It helps them gather enough starlight to develop technology and life. Such structures can sometimes interfere with the passage of light from the star, causing periodic blackouts visible from Earth. Открыть/Комментировать

2023-05-18 14:00:51 Why don't the artificial satellites, which orbit us, collide with each other?

Currently, over 3,000 active satellites are orbiting the Earth, and an equal number are already out of orbit. In all, there are more than 100 million fragments in Earth orbit. These fragments are space debris ranging in size from 1 mm.

The size of the near-Earth space is quite large. But if you consider this space in numbers, 1 satellite or object is about 13,000 cubic kilometers. That's not much, a little more than half the volume of Lake Baikal. And given a velocity of over 28,000 kilometers per hour, the chances of a collision would be quite high.

For example, in 2009, the Iridium satellite collided with a spent spacecraft. The results of this accident were the destruction of the satellite and 2,300 pieces of large space debris. Открыть/Комментировать

2023-05-17 21:00:36 The Andromeda Galaxy, also known as Messier 31, M31, or NGC 224

Aka the Andromeda Nebula, is a spiral galaxy with a dashed structure

It is located about 2.5 million light-years from Earth, and is the closest major galaxy to the Milky Way. Открыть/Комментировать

2023-05-17 14:00:49 The Hubble Space Telescope's 1.4 million observation points

The picture shows that, in 32 years of continuous operation, the most efficient telescope in history has only covered 0.8% of the night sky.

99.2% is still to be studied.

The blank black background in the background are areas of the sky where the telescope has not yet looked. Открыть/Комментировать

2023-05-16 21:00:37 A shot of the "space jellyfish" from the recent Starlink satellite launch

The first stage of the Falcon 9 rocket landed on the ASOG offshore platform.

This is SpaceX's 18th launch this year. Открыть/Комментировать

2023-05-16 14:00:50 SpaceX says humans to reach Mars by the end of the decade

People will land on the surface of Mars until the end of this decade. Gwynne Shotwell, president of SpaceX, made this prediction in an interview with CNBC.

"I think we need to get a large delivery to the surface of Mars and then people will start thinking harder about it. And then, I think within 5 or 6 years we will see that will be a real place to go." Открыть/Комментировать

2023-05-15 21:00:44 Asteroid 2009 JF1 approached Earth on May 6

Scientists said that if the celestial body had collided with our planet, the force of the explosion would have reached 230 kilotons in TNT equivalent, dozens of times greater than the Hiroshima explosion in 1945.

However, the probability of collision was negligible, at 1:140,000. NASA told us that the size of the asteroid is 10 meters. Открыть/Комментировать

2023-05-15 14:00:48 Terrifying "scars" appeared on the Sun, threatening Earthlings

The entire surface of the Sun is covered with numerous dark cracks.

According to experts, the dark formations are protuberances, which are a kind of cold dense clouds of gas that hang over the solar surface and partially block the sun's light.

The emission of protuberances from the Sun is one of the most dangerous phenomena, because solar "clouds" contain enormous amounts of mass that are released into space in this way.

Moreover, a prominence ejection in which a protuberance "tears through" the entire corona often becomes a trigger for launching explosive processes: strong flares and additional mass ejections. Открыть/Комментировать

2023-05-13 21:00:34 Europe is home to deposits of table salt

Yellow spots scattered across Europa's surface are deposits of the sodium chloride we know as table salt. The discovery may indicate the similarity of the subsurface ocean of Jupiter's satellite with that of Earth and casts doubt on previous conclusions about its chemical composition.

As part of the experiment, sodium chloride had several new and distinctive features. For example, table salt changed its color to such an extent that it could be detected in the visible spectrum. Открыть/Комментировать