Category: Behind The Black

Exploring the canyons and plateaus of Valles Marineris

12:33 pm

Overview map

The canyons inside Valles Marineris
Click for original image.

Cool image time! The picture to the right, rotated, cropped, reduced, and sharpened to post here, was taken on November 2, 2024 by the high resolution camera on Mars Reconnaissance Orbiter (MRO). It shows just one small section of a ridge that descends deep into the giant canyon Valles Marineris, the largest known canyon in the solar system.

On the overview map above, the white dot inside the rectangle marks the location, in the westernmost section of the part of Valles Marineris dubbed Ius Chasma.

For scale, the nose of this ridge descends about 7,300 feet from the top to the bottom, about half the total descent from the small isolated plateau shown in the inset. That plateau, located in the mountainous region between Ius Chasma and Tithonium Chasma, rises to approximately the same elevation as the canyon’s rims to the north and south.

What this picture shows us is that Valles Marineris on its western end is both more shallow and broken up, forming several canyons and plateaus. As the catastrophic floods that are theorized to have carved this canyon pushed their way east, they carved a deeper gorge, so that about 1,500 miles to the east the canyon walls are considerable higher, from 20,000 to 30,000 feet in some places.

As always, the tourist in me can’t help look at this terrain and envision inns and hiking trails. Imagine homesteading that plateau where you build a hotel and trails. Since I expect much transportation on Mars will be by air, your guests would fly in, land at a heliport, and spend their visit hiking down into the canyons that surround them.

Damn! The future is going to so grand!

1 comment

House committee holds hearing to protect its Artemis pork

9:50 am

The space subcommittee of the House science committee yesterday held a hearing which appears to have been mostly designed to protect the Artemis pork that both parties have been funding for decades, designed not to get us into space but to funnel tax dollars into their districts.

The hearing had only two witnesses, one pro-SLS (Dan Dumbacher) and one only very slightly skeptical of it (Scott Pace). Both these men have been deep members of the Washington swamp for decades, and both made it clear that funding should continue for SLS, at a minimum through the third Artemis launch, presently scheduled for ’27, a launch date so uncertain no one should believe it.

NASA had been invited to send a witness, but it apparently declined to do so.

Pace, the supposedly skeptic of SLS, has actually been a big supporter for years. As executive secretary for Trump’s National Space Council during Trump’s first term, he consistently advocated big space and NASA-built rockets, showing continuous skepticism of commercial space. Even now, his suggestion that SLS be reconsidered after that third launch was very hesitant.

Essentially, this committee hearing was called by these congress critters to advocate the status quo, which is likely why NASA declined to send a witness. Why give them a chance to blast any potential or major change in Artemis and have the propaganda press savage NASA and the Trump administration with negative soundbites?

20 comments

All is so far well with Intuitive Machines Athena lunar lander

9:27 am

The Moon's South Pole with landers indicated
The Moon’s South Pole with landers indicated.
Click for interactive map.

According to a tweet yesterday from Intuitive Machines, its Athena lunar lander is operating as expected since its launch last night.

The lander is in excellent health, sending selfies, and preparing for a series of planned main engine firings to refine her trajectory ahead of lunar orbit insertion, planned on March 3. Intuitive Machines is targeting a lunar landing opportunity on March 6.

If all goes as planned, Athena will land only 100 miles from the Moon’s south pole, as shown on the map to the right. This location had originally been picked for NASA’s now canceled VIPER rover, because the terrain would have allowed the rover to travel down into some permanently shadowed regions. NASA now hopes to use the Grace hopper on Athena to accomplish the same task.

Next week will also see a second privately built rover land on the Moon, though several days before Athena. Firefly’s Blue Ghost lander is scheduled to land on March 2, 2025 in Mare Crisium on the eastern edge of the Moon’s visible hemisphere. Furthermore, there is presently a third private lander on its way to the Moon, built by Japan’s Ispace. It is taking a longer route there, with its landing occurring in May.

There is also a fourth commercial lander, Astrobotic’s Griffin, that is presently targeting a launch by the end of 2025. It was originally supposed to carry VIPER, but has now replaced that with the commercial test prototype rover being built by the startup Venturi Astrolab, which is competing to get the contract to build the manned rover for NASA’s Artemis program.

Lunar exploration is certainly heating up.

Hat tip to reader Richard M for the Athena tweet update.

2 comments

SpaceX and China complete launches

9:02 am

Since my last launch report yesterday there have been two more launches (with another planned for later today).

First, last night SpaceX launched another 21 Starlink satellites into orbit, its Falcon 9 rocket — using a new first stage — lifting off from Cape Canaveral in Florida. The first stage successfully landed on a drone ship in the Atlantic. This new stage shows that SpaceX appears building about one to two new first stages per year in order to maintain its fleet.

Next, China placed two classified remote sensing satellites into orbit, its Long March 2C rocket lifting off from its Jiuquan spaceport in the northwest of China. No word on where the rocket’s first stage, which uses very toxic hypergolic fuel, crashed inside China.

Another launch is expected later this afternoon, by Russia, launching a new Progress freighter to ISS.

The leaders in the 2025 launch race:

25 SpaceX
9 China
2 Rocket Lab

3 comments

SpaceX launches Intuitive Machines’ Athena lunar lander

5:33 pm

The Moon's South Pole with landers indicated
The Moon’s South Pole with landers indicated.
Click for interactive map.

SpaceX today successfully launched the second lunar lander built by the startup Intuitive Machines, dubbed Athena, for a landing near the lunar south pole in about eight days, its Falcon 9 rocket lifting off from the Kennedy Space Center in Florida.

The “X” on the map to the right indicates the landing location, on a mountain called Mons Mouton, about 100 miles from the south pole. This will be the closest landing to the pole by any lander. It is also the site that was originally selected for NASA’s now cancelled VIPER rover mission.

The launch also included NASA Lunar Trailblazer lunar orbiter, designed to map the Moon’s surface for evidence of water, and Astroforge’s first interplanetary probe, dubbed Odin, which will attempt the first close fly-by of an asteroid by a privately built and own space probe. The asteroid, 2022 OB5, is thought to be made up largely of nickel-iron, which makes it a prime mining target.

The first stage completed its ninth mission, landing on a drone ship in the Atlantic.

The leaders in the 2025 launch race:

24 SpaceX (with another launch scheduled for later tonight)
8 China
2 Rocket Lab

6 comments

February 26, 2025 Quick space links

3:33 pm

Courtesy of BtB’s stringer Jay. This post is also an open thread. I welcome my readers to post any comments or additional links relating to any space issues, even if unrelated to the links below.

  • Scott Pace, NASA swamp creature who pushed SLS for years, suddenly questions its practicality
    Pace was a completely useless advisor to Trump’s National Space Council in the first administration, as he routinely pushed for big NASA projects built by NASA in league with the old space companies. He had no use for private space, and actually worked to hinder it. To suddenly change his tune now is nice, but it simply illustrates why he is not someone Trump or any NASA official should go to for worthwhile advice.
8 comments

Intuitive Machine’s Athena lunar lander to launch later today

12:41 pm

The second attempt by the startup Intuitive Machines to soft land a spacecraft on the Moon is scheduled to launch today at 7:16 pm (Eastern) time on a Falcon 9 rocket lifting off from the Kennedy Space Center in Florida.

I have embedded the Space Affairs live stream feed below, because it starts only 45 minutes before launch. If you want to watch an extra hour of pre-launch blather and propaganda from NASA, the official live steam can be found here. Be warned however. All the live feeds are being produced by NASA, which tends to make believe it made everything happen, when in truth both the rocket and lander are privately owned and built. NASA is contributing most of the science instruments, but without SpaceX and Intuitive Machines, none of those instruments would go anywhere.

A very good description of the mission and the science instruments on board, including a hopper, and a drill, can be found here.

Secondary payloads on the rocket include a low cost NASA lunar orbiter and the first interplanetary probe of a private company.

The first, Lunar Trailblazer, has two instruments for mapping the existence of water on the lunar surface. The second, Astroforge’s Odin spacecraft, will attempt a close fly-by of the asteroid 2022 OB5, thought to be made up mostly of nickel-iron and thus potentially very valuable resource for mining.

» Read more

1 comment

Juno data proves volcanism on Io involves numerous lava lakes

11:47 am

The lava lakes of Io
A global map of Io’s lava lakes. Click for original figure.

Based on data and imagery produced by the Jupiter orbiter Juno as it made a series of fly-bys of the moon Io from 2022 to 2024, scientists have now mapped at least 40 lava lakes amid the numerous volcanoes on the planet. The map above, figure 2 of the paper, shows their location and approximate relative size across Io’s surface. From the paper’s abstract:

Recent observations from the Juno spacecraft have revealed at least 40 lava lakes on Io, one of Jupiter’s moons, using the JIRAM (Jovian InfraRed Auroral Mapper) imager. Most of the large depressions on Io, known as paterae, show signs of heat, indicating that lava lakes are common. The lava lakes vary in size from 10 to 100 km in diameter and have a thin crust, about 5–10 m thick, that appears to be a few years old. The heat observed mainly comes from the larger crust, not the small exposed lava, so it is hard to measure the total heat output from just the thermal data. Additionally, eight of these lava lakes are new discoveries and were not previously known as active hotspots.

One aspect of these lakes found repeatedly in this new data is that their lava appears to rise and fall as a unit, as if the lake’s floor bed acts like a huge piston pushing the whole lake up and down from below, rather than lava entering in or draining out from a central vent. This conclusion appears to settle the debate between these models for explaining why the lava almost never rises high enough to pour out from the lake. Instead, the lakes themselves appear to be stable features, not volcanic calderas from which lava flows to build a mountain.

0 comments

More voices in Florida lobby to move NASA HQ there

10:15 am

Today there were several news stories quoting a variety of Florida politicians and industry groups pushing to have the Trump administration move NASA’s headquarters from Washington to Florida when its current building lease expires in 2028.

The first story mostly reiterated what was said by these politicians in January. All three seemed carefully timed to maximize exposure, which illustrates why one must always be skeptical of modern mainstream journalism. Too often it doesn’t report news, it serves as a propagandist for the interests of the political world.

Even so, moving a significantly reduced NASA headquarters to Florida makes some sense. If anything, it would save taxpayer money, and might also reduce the ability of NASA’s upper management to manipulate Congress to give it more money while accomplishing nothing, something that management has been doing now for decades.

7 comments

Rocket Lab’s shares lose 10% because of a negative assessment by stock analyst

9:53 am

Because one stock market analyst, Bleeker Street Research (BS) this week issued a negative assessment of Rocket Lab’s schedule for launching its new Neutron rocket, the company’s shares have lost about 10% of their value in the past few days.

In the report, BSR opines that while Rocket Lab has captivated investors with the promise of Neutron, its research shows the promise is built on shaky ground.

BSR believes the Neutron launch won’t take place until mid-2026, and could be delayed until mid-2027. Engine development, structure production, Wallops Island in Virginia, USA, launch pad construction, and transporting Neutron to the site are all factors cited by BSR as driving the delay.

BSR also questioned whether Rocket Lab could get its launch price of $50-$55 million.

Delays in launching a new rocket are to be expected, though as of now Rocket Lab has not indicated any issues that would preclude their predicted first Neutron launch in 2025.

One wonders if this report is merely the typical price manipulation you see all the time from stock market honchos. Issue a negative report which causes the price to drop, and then use that drop to buy up shares at discount prices.

At the same time, the analysis could be correct, though it depends on unnamed sources.

4 comments
1 … 225 226 227 228 229 … 2,914