The sky is not the limit!  |  Nuclear fusion, meteor crater, electron + Voyager mission!

The sky is not the limit! | Nuclear fusion, meteor crater, electron + Voyager mission!

NASA is preparing for the long-awaited Artemis I mission, the first in the program that will return humanity to the moon. There will be no astronauts stepping on the moon: the goal for now is to test all vehicles, equipment and orbit calculations, among other details. However, expectations are high and the space agency has announced some new details, which you can see below.

Of course, as usual, there are many other news of the week worth noting.

The National Ignition Facility is at Lawrence Livermore National Laboratory (Photo: Reproduction/Damien Jemison/LLNL)

Scientists at the National Ignition Facility, located in California, were able to achieve one of the main goals of nuclear fusion experiments: ignition. This is the point at which the reactor can produce more energy than is required to start the reaction. The problem is that they cannot replicate this result.

According to the team, the ignition depends on many details, particularly on the initial conditions of the fuel. Any minute detail out of place results in poor results. So far, they still haven’t figured out where the error is. Nuclear fusion is the future of clean and safe energy production.

An artist’s drawing of the Chicxulub asteroid, which caused the extinction of the dinosaurs (Photo: Donald E. Davis/CC BY-SA 3.0)

An underwater crater has been found off the coast of West Africa that may have been formed by an asteroid around the same time as the dinosaurs became extinct. Researchers found it by chance, but they have not yet confirmed that it is an impact crater.

Named after Nader, the crater is 900 meters deep and will be 400 meters wide. The impact (if it did occur) would have released energy equivalent to 5,000 megatons of TNT. Scientists speculate that the asteroid Chicxulub (“dinosaur killer”) may break into several pieces before it collides, one of which formed a rare crater.

The Voyager 2 spacecraft in preparation before launch (Image: Reproduction/NASA/JPL-Caltech)

The Voyager mission, launched in 1977, completed 45 years of space travel, beyond the limits of the solar system. Today, the two probes are already outside the boundary called the heliosphere, which protects the solar system from cosmic rays. In other words, they are in interstellar space, in a region completely unknown to scientists.

The twin spacecraft took with them golden disks with recorded images of living things on our planet, scientific charts, and the sounds of the Earth, as a kind of “business card” of our world for future civilizations.

Astronauts perform a spacewalk for repairs to the International Space Station (Image: Reproduction/Thomas Pesquet/ESA)

A spacewalk to repair the International Space Station, scheduled for Wednesday afternoon (17), was halted due to a malfunction in the spacesuit of cosmonaut Oleg Artemyev of the Russian space agency Roscosmos. The suit’s batteries suddenly fell out about two hours after the mission began.

The cosmonaut had to return to the hatch to “connect” his suit to an internal power source, but since spacewalks had to always be performed in pairs, his colleague Denis Matveev also had to abandon extravehicular activity. The problem affected only Artemyev, and he did not bear any further consequences.

A mathematical model attempts to predict whether astronauts can reach Mars without fainting (Image: Reproduction/NASA)

There are many potential health risks for astronauts on a long space flight, such as a final mission to Mars. The spacecraft will take six to seven months to get there, and this can cause problems for the crew due to the long stay in microgravity. Unfortunately, there is no way to accurately predict what these risks will be, since no one has ever been to the Red Planet.

Therefore, the researchers created a model to assess whether astronauts would be able to land and perform their missions on Mars soil without the need for medical assistance, mainly because when combined with the sun’s radiation, post-flight conditions in microgravity can cause significant damage. changes in the body; The goal is that the mathematical model can be applied to an extended travel simulation.

Japanese OMOTENASHI lander concept (Photo: Reproduction/JAXA/University of Tokyo)

NASA’s Artemis I mission will carry among its payloads a Japanese lunar lander, called OMOTENASHI, developed by the Japan Aerospace Agency (JAXA) and the University of Tokyo. Its purpose is to demonstrate a controlled landing attempt.

OMOTENASHI is the smallest lander ever made to land on the Moon, and will test techniques and maneuvering calculations that will be used in future lunar missions. The Artemis program aims not only to send astronauts, but also to send equipment and vehicles to establish the enduring permanence of humanity on the Moon.

Preview of AROW, an instrument that will show data from the capsule’s flight to the Moon (Image: NASA/JSC)

And speaking of Orion’s capsule, NASA has created a tool called AROW (Artemis Real-time Orbit Website) for anyone to track the spacecraft’s journey as it flies to the moon on the Artemis I mission. The spacecraft’s location, condition, and distance from Earth and Moon are among other data.

AROW will be available from August 28, the day before the Artemis I launch. The Orion capsule will not carry a human crew this time, as NASA needs to test all vehicles before sending astronauts out. The only “passengers” of Artemis I will be puppets with observational devices.

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