Space Stories: Habitable Zone Planets, Satellite Interference, and Extraterrestrial Communication

Posted on by onespaceman2000
Image (Credit): Artist’s rendering of the Milky Way Galaxy. (NASA JPL)

Here are some recent stories of interest.

—ScienceDaily: “One-third of Galaxy’s Most Common Planets Could be in Habitable Zone“

In a new analysis based on the latest telescope data, University of Florida astronomers have discovered that two-thirds of the planets around these ubiquitous small stars could be roasted by these tidal extremes, sterilizing them. But that leaves one-third of the planets — hundreds of millions across the galaxy — that could be in a goldilocks orbit close enough, and gentle enough, to hold onto liquid water and possibly harbor life.

—Space Telescope Science Institute: “Astronomers are Reducing Satellite Interference in Hubble Images“

When the Hubble Space Telescope was launched in 1990, there were about 470 artificial satellites orbiting Earth. By 2000, that number doubled. But by 2023, the rising number has grown almost exponentially to nearly 8,000 satellites. For Hubble this means that satellites photobomb about 10% of its exposures on celestial targets…Astronomers at the Space Telescope Science Institute in Baltimore, Maryland have developed tools for cleaning up this clutter. Hubble observations consist of more than just one exposure. And so, artifacts can be identified and subtracted between exposures because they are not in the same place on a detector.

—BGR: “Aliens Might be Trying to Contact Us from Within the Milky Way, Study Claims“

A new study seems to think alien signals could be emitting from the heart of the Milky Way, attempting to make contact with humankind. The study focuses on the use of data from a groundbreaking mission known as the Breakthrough Listen Investigation for Periodic Spectral Signals (BLIPSS), which looks for repeating patterns that could be key to unlocking connections with extraterrestrial intelligence in our galaxy.

Starlink: DOD Pays for Ukrainian Service

Posted on by onespaceman2000
Image (Credit): Map of Ukraine. (BBC News)

Elon Musk got his way. The US Department of Defense (DOD) will be paying an undisclosed amount for the Starlink services being used in Ukraine. This is good news for the Ukrainians had they feared interruption of this vital link with the rest of the world, yet I imagine this will also put SpaceX’s Starlink system at greater risk given that it now is a clearly a subcontractor to the US defense initiatives.

As the media has pointed out, Musk started to cut back on Starlink services to make a point about it being used as part of the war, with one Senator noting:

I was personally disappointed to see discontinuation of full services at such a critical time for Ukraine self-defense…Do you feel there’s a connection between the availability of this capability to our partners in Ukraine in this conflict, and relationships we have with companies like SpaceX?

It appears the relationship has improved now that DOD has opened its checkbook. I guess the next move will be taken by the Russians. And if the past is any guide, things may get ugly.

Second TROPICS Launch a Success

Posted on by onespaceman2000
Image (Credit): The TROPICS launch this week from New Zealand. (Rocket Lab)

The second and final TROPICS satellites, also known as Time-Resolved Observations of Precipitation structure and storm Intensity with a Constellation of Smallsats, were launched late yesterday via a Rocket Lab rocket in New Zealand. The first pair were launched earlier this month.

Rocket Lab sent out this message:

Payload deployment confirmed! Congratulations to the launch team on our 37th Electron launch, and to our mission partners at @NASA @NASA_LSP @NASAAmes: the TROPICS constellation is officially on orbit!

NASA now has more eyes on the world’s weather patterns. The lead of NASA’s Earth Science Division, Karen St. Germain, stated:

As we move into hurricane season for 2023, TROPICS will be in position to provide unprecedented detail on these storms, helping us better understand how they form, intensify, and move across the ocean.

TROPICS Starts its Mission

Posted on by onespaceman2000
Image (Credit): Rocket Lab’s Electron rocket at Launch Complex 1 in Mahia, New Zealand. (NASA)

On Sunday, the TROPICS mission was successfully launched after an earlier delay. The Rocket Lab Electron launch took place in New Zealand and involved two small CubeSats tasked with monitoring deadly storms. This is the first pair to be launched, with a total of four satellites planned to accomplish the TROPICS mission.

And yes, TROPICS is an acronym (fortunately) for Time-Resolved Observations of Precipitation structure and storm Intensity with a Constellation of Smallsats. And you thought the Congress was going crazy with its acronyms for legislation.

You can read more about the TROPICS mission here.

If You Thought the Skies Were Crowded, Just Wait

Posted on by onespaceman2000
Credit: Starlink.

The Washington Post recently published a story, “China’s military aims to launch 13,000 satellites to rival Elon Musk’s Starlink,” that can only terrify astronomers here on Earth trying to view the stars. The title says it all – the space race continues to clutter the skies with more and more low-Earth satellites broadcasting back to the surface. It is a dippy Dyson Sphere that contains scientists rather than energy.

Starlink’s success in Ukraine really bothers the Chinese, who see the network as a lifeline for Taiwan as well. The article quotes Chinese military researchers, who state:

Once the Starshield is completed, it will be tantamount to installing networked surveillance cameras all over the world. At that time, military operations including the launch of ballistic missiles, hypersonic missiles and fighter jets will hardly escape the monitoring of the United States.

I would prefer the space race between the US and China focused on the Moon or Mars rather than local invasions, but that is the state of the world at the moment. Not that the race to the Moon was a completely tame affair. For instance, the US contemplated exploding a nuclear bomb on the surface of the Moon to impress the Russians and everyone else. Fortunately, Project A119 never happened.