Rocket stage to hit Moon is from Chinese rocket, not Falcon 9 upper stage

Astronomers have now concluded that the rocket stage that will impact the Moon on March 4th is not an abandoned the Falcon 9 upper stage that launched the DISCOVR satellite in 2015, but an upper stage from a Chinese rocket.

It was an engineer at NASA’s Jet Propulsion Laboratory, Jon Giorgini, who realized this object was not in fact the upper stage of a Falcon 9 rocket. He wrote to Gray on Saturday morning explaining that the DSCOVR spacecraft’s trajectory did not go particularly close to the Moon, and that it would therefore be a little strange if the second stage strayed close enough to strike it. This prompted Gray to dig back into his data, and identify other potential candidates.

He soon found oneโ€”the Chinese Chang’e 5-T1 mission launched in October 2014 on a Long March 3C rocket. This lunar mission sent a small spacecraft to the Moon as a precursor test for an eventual lunar sample return mission. The launch time and lunar trajectory are almost an exact match for the orbit of the object that will hit the Moon in March.

Regardless, it will be very useful to pindown the exact impact time and place so that astronomers can observe it.

4 comments

Global image of Mars from UAE’s Al-Amal orbiter

Mars as seen by Al-Amal in January 2022
Click for original image.

Cool image time! The United Arab Emirates (UAE) today released several new images taken by its Al-Amal Mars orbiter, showing the changing atmospheric conditions on Mars between September ’21 and January ’22.

The photo to the right, cropped and annotated by me, is the January image, showing the dust storm conditions that presently exist in the equatorial regions of Mars. The lighter puffy cloud-like features in the center of the image are a 1,500 mile wide dust storm centered on the equator. The white dot indicates the approximate spot where Perseverance sits in Jezero Crater, within that storm.

The previous Al-Amal image from September (available at the link) shows the whole Martian hemisphere with generally clear skies.

Below is a recent photo taken by Perseverance illustrating these dusty conditions.
» Read more

7 comments

ESA selects Ariane-6’s first payloads

The European Space Agency (ESA), ArianeGroup, and Arianespace today announced the payloads that will fly on the first launch of its new Ariane-6 rocket.

The payloads are a variety of cubesats and science experiments, none heavier than 175 pounds with a total payload weight less than one ton. These secondary payloads will either be deployed from or kept attached to a dummy mass that will simulate a large primary satellite payload.

The press release makes no mention of a launch date, as has been the pattern in the last few Ariane-6 press releases. The last release to mention a launch date was in October 2020, which then predicted a launch in the second quarter of ’22. That this date is no longer being mentioned suggests the date has been pushed back, though for how long remains a mystery.

1 comment

First image from Webb released

Webb's first released alignment image

It ain’t pretty, nor is it in optical wavelengths, but the first alignment image from the James Webb Space Telescope has been released by NASA.

That image, reduced slightly to post here, is to the right. It shows 18 different near-infrared images of the same star, each image taken by a different segment of Webb’s primary mirror. At the moment the mirrors are not perfectly aligned, so that each segment’s star image shows up at a slightly different place. The goal now will be to adjust those mirror segments so that future images will show only one star, all focused to the same spot.

This alignment process is expected to take about a month.

The image is significant however because it shows that each segment is producing a relatively sharp image, even though the telescope has not yet cooled to its operating temperature. It thus appears that, unlike Hubble, Webb’s mirror segments were ground correctly, and it will be able to take sharp images right off the bat.

4 comments

Judge blocks Camden spaceport land purchase pending March 8th vote

Capitalism in space: A state judge has blocked Camden County in Georgia from purchasing any land for its proposed spaceport until after the county’s citizens vote on approving or rejecting the spaceport project on March 8, 2022.

Superior Court Judge Stephen Scarlettโ€™s injunction delivered a new victory for the residents and environmentalists whoโ€™ve remained critical of the countyโ€™s ambitious plans to launch rockets off Georgiaโ€™s coast toward sensitive barrier islands.

This week, a probate court judge ordered a March 8 election after a petition circulated by opponents received enough signatures for a referendum asking if the county should repeal its land-acquisition agreement with Union Carbide Corp. for the former industrial site where an environmental covenant restricts use of the land.

Essentially, the project will live or die depending on how county residents vote.

1 comment

Musk: “We need to seize the opportunity and do it as quickly as possible.”

Raptor engine
Raptor-1 on the left, Raptor-2 on the right

The headline quote above encapsulates the main philosophical point of Elon Musk’s presentation tonight in Boca Chica, Texas. Musk’s presentation was focused mostly at outlining the status of SpaceX’s Starship/Superheavy reusable heavy-lift rocket, but he started his talk stating his philosophical reasons for doing what he is doing.

It is his strong belief that in order to guarantee the survival of all life on Earth, we must colonize as many planets as possible. Musk’s quote above indicated his sense that this effort must be done now. As he had noted,

The window of opportunity [to build human settlements on other worlds] may be open for a long time, and I hope it is, but it may also be open for a short time. And this is the first point in the four and half billion history of Earth that it is possible.

He added, “To be frank, civilization is feeling a little fragile these days,” which makes achieving his goal quickly even more urgent.

After making this point, Musk then proceeded to outline what they’ve accomplished so far in building Starship/Superheavy, and what they hope to do in the coming years. Much of what Musk said was largely known, such as the size and power of Starship and its design. He did underline these important details:
» Read more

97 comments

Watching Elon Musk’s update on Starship tonight

Starship mounted by tower on Superheavy

Tonight at 8 pm (central) Elon Musk is going to give a presentation updating the world on the status of SpaceX’s Starship project, with the fully stacked Starship/Superheavy as his backdrop. The photo to the right is a screen capture showing that stacking.

I have embedded the live stream below. Or you can watch it on SpaceX’s website or on its youtube channel.

The biggest question is the regulatory situation for Boca Chica. Will Musk report progress in getting operations approved there by the federal government, or will he outline how the federal government is acting as a barrier to progress? Or will he sidestep the issue (for diplomatic reasons) and focus his talk entirely on technical issues?

We can only wait and see.

3 comments

Today’s blacklisted Americans: Private school makes enemies list of parents

Lovett ememies list
Click for original.

Blacklists are back and the Democrats (and their supporters) have got ’em: Two officials at the Lovett School, an expensive private K-12 school in the Atlanta area, have assembled an enemies list of “insubordinate” parents.

The picture to the right is a screen capture of an email sent to one of these officials, Jennifer Boutte, director of community relations, showing the list of parent enemies (blurred out to protect the privacy of these individuals). In it one official, Cholle [sp?] Wabrok, thanked Boutte for apparently assembling the list, adding

It is long overdue. I am disgusted by some of these parents, need to prioritize our efforts as some have too much influence. Our watch list — to keep hard-copy only?

» Read more

11 comments
1 812 813 814 815 816 2,929