A Day in Astronomy: First Spaceflight Fatality

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Image (Credit): Soviet cosmonaut Vladimir Komarov. (RIA Novosti)

On this day in 1967, the Soviet Union’s Vladimir Komarov became the first spaceflight fatality when his Soyuz 1 spacecraft crashed during reentry as the result of a failed parachute. The accident occurred during what was his second trip to space, his first being aboard the Voskhod 1. Yuri Gagarin served as the backup cosmonaut on the Soyuz 1 flight.

The Soyuz 1 mission was already experiencing problems before reentry, particularly with its solar panels. These problems were enough to end the mission early and delay the launch of a second Soyuz spacecraft that would have met up with the orbiting Soyuz 1. The spacecraft was not up to the mission. Before the crash, Komarov could be heard stating, “This devil ship! Nothing I lay my hands on works properly.”

This fellow cosmonauts had this to say via Pravda:

For the forerunners it is always more difficult. They tread the unknown paths and these paths are not straight, they have sharp turns, surprises and dangers. But anyone who takes the pathway into orbit never wants to leave it. And no matter what difficulties or obstacles there are, they are never strong enough to deflect such a man from his chosen path. While his heart beats in his chest, a cosmonaut will always continue to challenge the universe. Vladimir Komarov was one of the first on this treacherous path.

Image (Credit): Burkina Faso stamps commemorating cosmonaut Vladimir Komarov. (stamps-world.eu)

Juno Views Lava Lake on Io

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Image (Credit): View of Jupiter’s moon Io as seen by the Juno spacecraft on April 9. It was the first-ever image of the moon’s south polar region. (NASA/JPL-Caltech/SwRI/MSSS. Image processing: Gerald Eichstädt/Thomas Thomopoulos (CC BY))

The Juno spacecraft is still hard a work in the vicinity of Jupiter, with its latest mission being a flyby of the moon Io earlier this month (shown above).

Two recent flybys of the moon were also combined to create an image of a lake of cooling lava (shown below and via the video here). Juno’s principal investigator Scott Bolton explained the new image:

Io is simply littered with volcanoes, and we caught a few of them in action. We also got some great close-ups and other data on a 200-kilometer-long (127-mile-long) lava lake called Loki Patera. There is amazing detail showing these crazy islands embedded in the middle of a potentially magma lake rimmed with hot lava. The specular reflection our instruments recorded of the lake suggests parts of Io’s surface are as smooth as glass, reminiscent of volcanically created obsidian glass on Earth.

Juno has been zipping around Jupiter’s neighborhood since 2016. It’s main task is to study the origin and evolution of Jupiter, believed to be the first planet to have formed in our solar system. By doing so, NASA hopes to learn more about the solar system and the Earth as well.

Image (Credit): An artist’s rendering of Loki Patera, a lava lake on Jupiter’s moon Io, created using data from the JunoCam imager aboard NASA’s Juno spacecraft. (NASA/JPL-Caltech/SwRI/MSSS)

Space Stories: Protests to Save Chandra, Problems Retrieving Martian Sample, and TESS is Getting Testy

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Credit: https://www.savechandra.org

Here are some recent stories related to NASA missions.

—PhysicsWorld: “US Astronomers Slam Cuts to the Chandra X-ray Observatory“

X-ray astronomers in the US have begun a campaign to save the Chandra X-ray Observatory from budget cuts that would effectively end the mission. They assert that the craft, which was launched in 1999, has plenty of life left in it. Cancelling support could, they say, damage scientific efforts to understand the universe and the careers of an emerging generation of X-ray astronomers.

—CNN: “NASA Rethinks Plan to Return Rare Mars Samples to Earth“

“Mars Sample Return will be one of the most complex missions NASA has ever undertaken. The bottom line is, an $11 billion budget is too expensive, and a 2040 return date is too far away,” Nelson said. “Safely landing and collecting the samples, launching a rocket with the samples off another planet — which has never been done before — and safely transporting the samples more than 33 million miles (53 million kilometers) back to Earth is no small task. We need to look outside the box to find a way ahead that is both affordable and returns samples in a reasonable time frame.”

—NASA: “NASA’s TESS Temporarily Pauses Science Observations“

NASA’s TESS (Transiting Exoplanet Survey Satellite) entered into safe mode April 8, temporarily interrupting science observations. The team is investigating the root cause of the safe mode, which occurred during scheduled engineering activities. The satellite itself remains in good health. The team will continue investigating the issue and is in the process of returning TESS to science observations in the coming days.

Pic of the Week: The Gediz Vallis Channel

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Image (Credit): Panoramic shot of Mar’s Gediz Vallis channel taken by the Curiosity rover. (NASA/JPL-Caltech)

This week’s image comes from NASA’s Curiosity rover in the Gediz Vallis channel. It is a 360-degree panorama shot from back on February 3. The rover has diligently continued its exploration of the Martian surface since it first landed in 2012.

In terms of this latest rover location, NASA stated:

NASA’s Curiosity rover has begun exploring a new region of Mars, one that could reveal more about when liquid water disappeared once and for all from the Red Planet’s surface. Billions of years ago, Mars was much wetter and probably warmer than it is today. Curiosity is getting a new look into that more Earth-like past as it drives along and eventually crosses the Gediz Vallis channel, a winding, snake-like feature that – from space, at least – appears to have been carved by an ancient river.

That possibility has scientists intrigued. The rover team is searching for evidence that would confirm how the channel was carved into the underlying bedrock. The formation’s sides are steep enough that the team doesn’t think the channel was made by wind. However, debris flows (rapid, wet landslides) or a river carrying rocks and sediment could have had enough energy to chisel into the bedrock. After the channel formed, it was filled with boulders and other debris. Scientists are also eager to learn whether this material was transported by debris flows or dry avalanches.

Wallops Flight Facility to Launch Rockets to Study Eclipse

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Image (Credit): NASA’s Wallops Flight Facility in Virginia. (Timmons Group)

While Virginia will not be in the direct path of the upcoming Total Solar Eclipse, it will be playing a role related to the eclipse that day.

NASA’s Wallops Flight Facility on the Virginia coast will be launch three rockets to study disturbances in the Earth’s ionosphere during the eclipse. The rockets will be launched 45 minutes before, during, and 45 minutes after the peak local eclipse.

These launches are part of NASA’s Atmospheric Perturbations around Eclipse Path (APEP) mission. Such launches during an eclipse are not unusual as NASA hopes to learn a few things from this study.

Aroh Barjatya, a professor of engineering physics at Florida’s Embry-Riddle Aeronautical University campus, stated:

Understanding the ionosphere and developing models to help us predict disturbances is crucial to making sure our increasingly communication-dependent world operates smoothly.