Tag: spaceflight

Perseverance peers towards the rim of Jezero Crater

12:17 pm

Perseverance peers through winter haze
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Overview map
Click for interactive map.

In our second cool image from Mars today, the Mars rover Perseverance gives us its own long distance view of the dusty winter air inside Jezero Crater. The photo above, cropped and reduced to post here, was taken on June 16, 2022 by the rover’s left high resolution camera, and looks to the southwest towards the crater’s western rim.

As with today’s previous cool image from Curiosity, we can see several ranges, each with distance faded more by the dust that hangs in the air during the winter on Mars. In the foreground right is the nearest cliff of the delta that flowed into Jezero over time in the past. Next is a knob and ridge line, also part of that delta flow but farther away. Third are some farther ridges that might have been part of that flow but maybe not.

Faintest of all are the highest mountains that form the western ridge of Jezero Crater, barely visible in the haze.

The blue dot in the overview map to the right marks Perseverance’s approximate position when the photo was taken. The yellow lines my guess as to the area covered by the photo. The green dot marks Ingenuity’s present position after its last flight, much closer to the delta that I had predicted.

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Martian mountains, near and far

11:44 am

Navigation image
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Martian mountains, near and far
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Cool image time! The photo to the right, taken on June 18, 2022 by high resolution camera on the Mars rover Curiosity, provides a close-up of the area indicated by the arrow in the navigation camera image above taken three days earlier.

Because the rover had moved uphill slightly during those three days, the close-up can peek over what was the most distant ridge to see farther up Mount Sharp. (For context take a look at the overview map here.) All told, this close-up to the right shows four mountain ridges/ranges. First we have the ridgeline to the right, partly in shadow, which forms the right wall of the saddle that Curiosity appears heading for. Next we can see to the left the top section of the large 1,500 foot high mesa on the other side of the canyon Gediz Vallis. Note its many layers, all of which are going to become a major item of study as Curiosity gets closer.

Third we have a very rough and tumbled ridgeline, formed in a layer the geologists have dubbed the sulfate bearing unit. This layer tends to be very light in color, and more easily eroded. Curiosity is presently beginning to move into this layer as it climbs.

Finally there is the most distant ridge, which is simply the higher reaches of Mount Sharp though not its peak by a long shot.

The dusty winter air is quite evident by the chariscuro effect, causing the more distant ridges to appear more faded.

Note: This will be the first of three cool Martian images today. Stay tuned.

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SLS dress rehearsal countdown continues, though T-0 delayed two hours

9:33 am

The SLS dress rehearsal countdown is proceeding today as planned, though the countdown’s end at T-0 is now 4:38 pm (eastern), two hours later than previously announced.

Apparently they have delayed T-0 from the beginning of the two-hour simulated launch window to its end. This decision so early in the count suggests the launch team wants to give itself extra time either to deal with some issue that has come up that they haven’t told us about yet, or to give themselves more time in case some issue should come up.

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ISS forced to dodge space junk from Russia’s November ’21 anti-sat test

9:26 am

Last week the Russians were forced to use the engines of the Progress cargo capsule docked to ISS to shift the station’s orbit slightly to avoid a collision with some debris left over from Russia’s anti-satellite test in November 2021.

“I confirm that at 22.03 Moscow time, the engines of the Russian Progress MS-20 transport cargo ship carried out an unscheduled maneuver to avoid a dangerous approach of the International Space Station with a fragment of the Kosmos-1408 spacecraft,” Roscosmos chief Dmitry Rogozin wrote on Telegram (opens in new tab), according to a Google translation, using Roscosmos’ designation for Progress 81.

While the Russians have consistently denied the anti-sat test and the 1,500 satellite pieces it created would cause a collision threat, yesterday’s action was not a surprise, and was predicted by many right after the test.

The concern however is not the debris that has been identified and is being tracked, since collisions from that stuff can be predicted and avoided. The concern is from the smaller pieces that were not identified.

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SLS dress rehearsal countdown begins

10:07 am

NASA engineers began their fourth attempt to complete a full dress rehearsal countdown of the SLS rocket yesterday, with everything proceeding so far as planned.

Overnight, engineers powered up the Orion spacecraft and the Space Launch System’s core stage. Teams also configured several systems on the ground, rocket, and spacecraft and performed activities to prepare umbilicals that connect the rocket and spacecraft to the mobile launcher and are used to provide power, communications, coolant, and propellant.

Actual fueling begins tomorrow, when the countdown is supposed to conclude at T-0 at 2:40 pm (Eastern).

NASA live stream is available here.

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SpaceX completes its third launch in less than 48 hours

9:41 pm

Capitalism in space: SpaceX tonight successfully completed its third launch in less than 48 hours, launching a commercial communications satellite.

The first stage completed its ninth flight, landing on a drone ship in the Atlantic Ocean. At this moment, though the satellite is in orbit it has not yet been deployed.

The leaders in the 2022 launch race:

26 SpaceX
18 China
8 Russia
3 Rocket Lab
3 ULA

American private enterprise now leads China 35 to 18 in the national rankings, and leads the entire world combined 35 to 29.

At this point the U.S. is halfway to matching its annual record for launches of 70, set in 1966. With the year not quite half over, the U.S. is also only seven launches behind its total of 48 last year, which had been the most launches for the U.S. in a year since 1968. SpaceX itself is only five launches behind its own record of 31 from last year, and is easily on a pace to meet its goal of 60 launches this year.

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UAE’s Rashid lunar rover getting ready for November launch

10:31 am

The new colonial movement: Engineers have now delivered the United Arab Emirates’ (UAE) first lunar rover, Rashid, to France for testing and preparation for its early November launch on a Falcon 9 rocket.

The 10-kilogram rover will now spend a few weeks in Toulouse for vibration and thermal vacuum testing, a series of final checks to ensure it can survive the extreme environment during a rocket launch and spaceflight. It will then be moved to Germany, so it can be integrated with a Japanese lander, called Hakuto-R Mission 1, built by private company ispace inc, which will deliver the rover to the lunar surface.

Once completed, it will be shipped to the launch site in Florida’s Kennedy Space Centre in September.

Unlike the UAE’s Al-Amal Mars orbiter — which was mostly built in the U.S. by American companies and universities as part of a training program for UAE citizens, Rashid appears to have largely built in the UAE by those engineers.

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South Korea reschedules launch to June 21 after fixing sensor issue

9:28 am

The new colonial movement: South Korea space officials from its KARI space agency have now rescheduled the second test launch of their home-built Nuri rocket for June 21st, after replacing a fuel sensor on the rocket that was not working.

ARI said engineers identified the problematic part within the sensor and replaced it, and Kwon said they also found no other problems after inspecting the rest of the rocket. Kwon noted that the rescheduled launch date could be subject to change depending on weather conditions.

This will the second time KARI has attempted an orbital launch of Nuri, with the first experiencing an upper stage failure in October 2021.

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SpaceX successfully launches German military satellite

8:45 am

Capitalism in space: SpaceX this morning used its Falcon 9 rocket to successfully launch a German reconnaissance satellite, completing its second of three launches this weekend.

The first stage completed its third flight, landing at Vandenberg, in thick fog. The third launch is set for just after midnight tonight.

The leaders in the 2022 launch race:

25 SpaceX
18 China
8 Russia
3 Rocket Lab
3 ULA

American private enterprise now leads China 34 to 18 in the national rankings, and the entire world combined 34 to 29.

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Wavy crescent ridges on Mars

10:23 pm

Wavy crescents on Mars
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Cool image time! The photo to the right, cropped and reduced to post here, was taken on November 19, 2021 by the high resolution camera on Mars Reconnaissance Orbiter (MRO). It shows what the science team has labeled “Crescentic forms,” which in some ways resemble crescents that I featured in a cool image back in November 2020.

Unlike those earlier crescents, today’s are linked together to form a longer wavy line. Furthermore, today’s crescents include some positive relief, with some parts standing above the surrounding terrain. The earlier crescents were entirely carved out of the ground, forming depressions.

And yet, the method of formation for both must be somewhat similar. I say this based on their location, as shown in the overview map below.
» Read more

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Ariane-6 rocket delayed again

9:27 am

Capitalism in space: The first launch of ArianeGroup’s new rocket, Ariane-6, has been delayed again, and will not launch this year as planned.

The new delay appears mostly related to getting the rocket’s ground systems up and running.

The rocket, being built for the European Space Agency’s commercial division, Arianespace, had originally been scheduled for launch in 2020. Initially the rocket struggled to find customers, because it is not reusable and is thus more expensive. That changed in the past few months with the Ukraine War eliminating Russian rockets as a competitor combined with a new gigantic launch contract from Amazon to launch a large number of its Kuiper satellites using Ariane-6.

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SpaceX launches another 53 Starlink satellites

9:20 am

Capitalism in space: SpaceX today successfully used its Falcon 9 rocket to launch another 53 Starlink satellites into orbit, initiating a weekend where the company hopes to complete three launches in three days.

At the time of this writing, the satellites had not yet been deployed. The first stage landed successfully on the drone ship in the Atlantic Ocean, completing its 13th flight, a new record. The video of the landing at the link was also one of the clearest yet, with little drop-out or distortion.

The leaders in the 2022 launch race:

24 SpaceX
18 China
8 Russia
3 Rocket Lab
3 ULA

American private enterprise now leads China 33 to 18 in the national rankings, and the entire world combined 33 to 29.

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