Space Mission: ESA’s Euclid Telescope

Posted on by onespaceman2000
Image (Credit): Artist’s drawing of the Euclid space telescope. (ESA/ATG-medialab)

To follow up on the previous post, Russia also lost out on launching the European Space Agency’s (ESA) Euclid spacecraft. Russia was supposed to launch it on a Soyuz-ST/Fregat rocket this December, but the country’s invasion of Ukraine led to a change in plans. SpaceX will now be launching the spacecraft next year.

Euclid was designed to study dark energy and dark matter, and make a 3D-map of the Universe. The project includes scientists from 14 countries: Austria, Denmark, France, Finland, Germany, Italy, Netherlands, Norway, Spain, Switzerland, Portugal, Romania, the UK, and the US.

Euclid hopes to answer the following questions:

  • How did the Universe originate? What were the conditions just after the Big Bang, and how did these give rise to the large-scale structures we see today?
  • Why is the Universe expanding at an accelerating rate today?
  • Is dark energy – a term often used to signify the mysterious force behind this cosmic acceleration – real? If so, is it a constant energy density intrinsic to and spread throughout space, or a new force of nature that slowly evolves as the Universe expands?
  • What is the nature of dark matter, and how do neutrinos possibly contribute? Are there other as-yet-undetected massive particles in the Universe?

Once launched, Euclid will operate in the Sun-Earth Lagrange point 2 (L2), which is where the James Webb Space Telescope is located as well as ESA’s Gaia spacecraft. Gaia, launched in December 2013, is currently mapping the stars in the Milky Way galaxy. It seems L2 is the place to be.

NASA is contributing infrared flight detectors for one of Euclid’s two science instruments. You can read more about the NASA contribution here.

Space Quote: Starlink Threatened by the Russians

Posted on by onespaceman2000
Image (Credit): November 13, 2021 SpaceX launch of 53 Starlink satellites. (SpaceX)

“Quasi-civilian infrastructure may be a legitimate target for a retaliatory strike.”

-Statement to the United Nations by Russian senior foreign ministry official Konstantin Vorontsov in reference to attacking SpaceX’s Starlink satellites being used by the Ukrainian military as it pushes back the Russian invasion. In a Reuters article, “Russia’s Anti-satellite Threat Tests Laws of War in Space,” Iridium chief executive Matt Desch stated, “If somebody starts shooting satellites in space, I’d imagine it would quickly make space unusable.”

Space Stories: Venusian Balloons, Sun Observations, and a Private Moon Trip

Posted on by onespaceman2000
Image (Credit): Test of the one-third scale prototype aerobot designed to withstand the corrosive chemicals in Venus’ atmosphere. (Near Space Corporation)

Here are some recent stories of interest.

—NASA.gov: “JPL’s Venus Aerial Robotic Balloon Prototype Aces Test Flights“

A scaled-down version of the aerobot that could one day take to the Venusian skies successfully completed two Nevada test flights, marking a milestone for the project…The shimmering silver balloon ascended more than 4,000 feet (1 kilometer) over Nevada’s Black Rock Desert to a region of Earth’s atmosphere that approximates the temperature and density the aerobot would experience about 180,000 feet (55 kilometers) above Venus. Coordinated by Near Space, these tests represent a milestone in proving the concept’s suitability for accessing a region of Venus’ atmosphere too low for orbiters to reach, but where a balloon mission could operate for weeks or even months.

—SkyandTelescope.org: “‘Chinese Observatory Will Study Violent Events on the Sun“

China has launched a solar observatory to study solar flares and eruptions, and their connection with the Sun’s magnetic field…[the Advanced Space-based Solar Observatory (ASO-S)] is planned to operate at 720 kilometers (447 miles) above Earth’s surface in a Sun-synchronous orbit that will allow it to observe the Sun at all times. Its primary, four-year mission is timed to make the most of the 2024–2025 solar maximum, when the Sun is at its most active during its 11-year cycle.

—Space.com: “‘SpaceX Says its 2nd Private Starship Trip Around the Moon will Help Make Humanity Multiplanetary“

SpaceX’s newly announced tourist mission to the moon could help humanity extend its footprint far beyond Earth, company representatives say. That mission, which was revealed today (Oct. 12), will send wealthy entrepreneur Dennis Tito, his wife Akiko and 10 other people on a weeklong journey around the moon aboard SpaceX’s huge Starship vehicle, which is still in development. Who those 10 other passengers will be is unknown; only the Titos have reserved seats at the moment.

Starlink Having Problems in Ukraine

Posted on by onespaceman2000
Image (Credit): Starlink page explaining why Starlink satellites are better then geostationary satellites. (SpaceX)

As if Elon Musk doesn’t have enough problems with his Twitter purchase and declining shares at Tesla, now the Ukranians are reporting that SpaceX’s Starlink internet service failed to work during a critical point in their battle to push the Russians out of Ukranian territory. This problem has been going on for weeks, but we are hearing about it now.

SpaceX was silent when these reports came out, but some suggested this may have been a feature rather than a bug in the Starlink system to prevent it from being used by Russians.

Mr. Musk later tweeted on this matter, stating:

Bad reporting by [The Financial Times]. This article falsely claims that Starlink terminals & service were paid for, when only a small percentage have been. This operation has cost SpaceX $80M & will exceed $100M by end of year. As for what’s happening on the battlefield, that’s classified.

Sadly, Mr. Musk did not clear the air but rather boasted about his company and attacked the media. But another media story from The Eurasian Times shed more light on the issue. The newspaper reports that Russia may be using its Tirada-2S satellite communications electronic jamming system to interrupt Starlink signals.

I would rather SpaceX is the cause of the problem rather than the Russians, but whatever it is we can only hope the Ukrainians, SpaceX, and Ukraine’s allies have a quick fix. Mr. Musk should received accolades for adding a novel asset to this war, yet his entire Starlink enterprise, and not just his donated equipment, is now at risk.

Update: Elon Musk is now asking the Pentagon to assume the costs of the Ukrainian Starlink program, expected to cost SpaceX about $100 million by the end of the year. Given the ongoing Twitter battle between Elon Musk and the Ukrainians related to Mr. Musk’s proposed peace plan for the region, the Ukrainians should probably be looking for another funding partner rather than continuing to count on the generosity of Mr. Musk.

Further Update: Elon Musk is now backing off on his attempts to seek more funding for Starlink, but as usual he is not very graceful about it. Here is his recent tweet:

The hell with it … even though Starlink is still losing money & other companies are getting billions of taxpayer $, we’ll just keep funding Ukraine govt for free.

Such drama from the wealthiest man in the world.

Space Quote: The Russians Are All In on the Space Station

Posted on by onespaceman2000

“We are going to keep flying [to the] International Space Station as long as our new infrastructure [is being] buil[t]. We don’t know yet how it’s going to be built and what kind of modules we will have, but I’m sure that we will stay in international partnership when we fly [to the] ISS and [the] future station and future infrastructure is also going to be with international partnership.”

–Statement by Sergei Krikalev, executive director of human space flight programs at Roscosmos, during an October 5th briefing following the successful SpaceX launch of the latest crew to the International Space Station (ISS), which included Russian cosmonaut Anna Kikina. His comments were seen as part of a continuing Russian clarification of earlier comments about the Russians leaving the ISS in 2024. It appears the Russian will be staying with the station even longer, even if this support does not last until 2030.