Pic of the Week: Dead Comet From Halloween Past

Posted on by onespaceman2000
Image (Credit): Asteroid 2015 TB145 as captured by the Arecibo Observatory in Puerto Rico on October 30, 2015. (NAIC-Arecibo/NSF)

This spooky image of a dead comet was captured 10 years ago, but it still serves this purpose this time of year. It passed the Earth on Halloween evening that year at a distance of about 302,000 miles.

Here is more from NASA’s Jet Propulsion Laboratory:

Scientists observing asteroid 2015 TB145 with NASA’s Infrared Telescope Facility (IRTF) on Mauna Kea, Hawaii, have determined that the celestial object is more than likely a dead comet that has shed its volatiles after numerous passes around the sun.

The belated comet has also been observed by optical and radar observatories around the world, providing even more data, including our first close-up views of its surface…

The first radar images of the dead comet were generated by the National Science Foundation’s 305-meter (1,000-foot) Arecibo Observatory in Puerto Rico. The radar images from Arecibo indicate the object is spherical in shape and approximately 2,000 feet (600 meters) in diameter and completes a rotation about once every five hours.

“The IRTF data may indicate that the object might be a dead comet, but in the Arecibo images it appears to have donned a skull costume for its Halloween flyby,” said Kelly Fast, IRTF program scientist at NASA Headquarters and acting program manager for NASA’s NEO Observations Program.

Space Stories: Space Observatory in Need of Rescue, Alien Comet Activates Earth Defense, and Japan Sends Cargo to the ISS

Posted on by onespaceman2000
Credit: swift.sonoma.edu/.

Here are some recent space-related stories of interest.

—KJZZ Phoenix: “Flagstaff-based Company Wins $30M Contract for NASA Space Rescue Mission“

A Flagstaff-based space company has won a $30 million contract to raise the orbit of a space-based NASA observatory next year before it can drop uncontrolled back into Earth’s atmosphere. NASA officials say they are in a race against time as the agency’s Neil Gehrels Swift Observatory and its three-telescope system studying gamma rays from space needs a rescue.

—Space Coast Daily: “NASA Activates Earth Defense Over Possible Alien Comet in Our Solar System“

NASA has activated a global planetary defense group to study a massive interstellar object exhibiting strange, possibly artificial characteristics—fueling speculation that it could be an alien probe operating within our solar system. The object, designated 3I/ATLAS, is approximately the size of Manhattan and was first captured by the Hubble Space Telescope on July 21. It has been selected as the first-ever official target of the International Asteroid Warning Network (IAWN)—a NASA-backed coalition of global agencies and astronomers tasked with identifying and tracking potential threats to Earth.

—ABC News: “Japan Successfully Launches New Cargo Spacecraft to Deliver Supplies to ISS“

Japan’s space agency successfully launched Sunday its most powerful flagship H3 rocket, carrying a newly developed unmanned cargo spacecraft for its first mission to deliver supplies to the International Space Station. The Japan Aerospace Exploration Agency said the HTV-X1 spacecraft successfully lifted off atop the No. 7 H3 rocket from Japan’s Tanegashima Space Center in the country’s south and confirmed it entered targeted orbit 14 minutes after liftoff. The spacecraft was separated and placed into a planned orbit, JAXA said. If everything goes smoothly, it is expected to arrive at the ISS in a few days to deliver supplies. Japanese astronaut Kimiya Yui, currently at the ISS, is set to catch the craft with a robot arm in the early hours of Thursday.

Space Quote: Don’t Damage Discovery

Posted on by onespaceman2000
Image (Credit): Space shuttle Discovery in the Smithsonian Institution’s Stephen F. Udvar-Hazy Center of the National Air and Space Museum in Chantilly, Virginia. (National Air and Space Museum)

”The Smithsonian estimates that transporting Discovery from Virginia to Houston could cost more than $50 million, with another $325 million needed for planning, exhibit reconstruction, and new facilities. These costs far exceed the $85 million appropriated in the One Big Beautiful Bill Act, P.L. 119-21. Dedicating hundreds of millions of taxpayer dollars to move an artifact that is already housed, displayed, and preserved in a world-class facility is both inefficient and unjustifiable.”

-Statement in an October 23, 2025 bipartisan letter from the US Senate Committee on Appropriations. In addition to the cost, the letter also highlights potential damage to the shuttle, stating:

Moving the shuttle would inevitably and irreparably compromise the artifact and render it unusable as a museum-quality collection item, permanently diminishing its historical and cultural value for future generations.

Pic of the Week: Cat’s Paw Nebula

Posted on by onespaceman2000
Image (Credit): NASA’s JWST poster showing the Cat’s Paw Nebula. (NASA, ESA, CSA, STScI; Designer: Elizabeth Wheatley (STScI))

This week’s image highlights a NASA poster that you can download (in a variety of versions). It shows the Cat’s Paw Nebula (NGC 6334) as captured by the James Webb Space Telescope (JWST).

Here is a short summary of what you are seeing from NASA:

Located approximately 4,000 light-years away in the constellation Scorpius, the Cat’s Paw Nebula offers scientists the opportunity to study the turbulent cloud-to-star process in great detail. Webb’s observation of the nebula in near-infrared light builds upon previous studies by NASA’s Hubble and retired Spitzer Space Telescope in visible- and infrared-light, respectively.

With its sharp resolution, Webb shows never-before-seen structural details and features: Massive young stars are carving away at nearby gas and dust, while their bright starlight is producing a bright nebulous glow represented in blue. It’s a temporary scene where the disruptive young stars, with their relatively short lives and luminosity, have a brief but important role in the region’s larger story. As a consequence of these massive stars’ lively behavior, the local star formation process will eventually come to a stop.

For more details and videos, visits the NASA page on the Cat’s Paw Nebula, which helps to commemorate the third anniversary of the JWST.

A Day in Astronomy: Letter to General Secretary Brezhnev

Posted on by onespaceman2000
Image: USSR 1991 Yuri A. Gagarin Stamps.

The U.S. has plenty of issues regarding the pace of its space programs in the face of Chinese achievements, as noted multiple times in posts on this site. We should not see this as anything new. U.S. politicians and citizens had plenty of similar complaints during the space race with the USSR, and we also have evidence of similar complaints within the USSR.

For instance, on this day in 1965, Yuri Gagarin, the first man in space, wrote a letter with other cosmonauts to the USSR’s General Secretary Brezhnev with a list of concerns. The letter stated, in part:

The USA have not only caught up with us, but even surpassed us in certain areas. The flights of space vehicles Ranger-7, Ranger-8, Mariner-4, Gemini-5, and others are serious achievements of American scientists. This lagging behind of our homeland in space exploration is especially objectionable to us, cosmonauts, but it also damages the prestige of the Soviet Union and has a negative effect on the defense efforts of the countries from the socialist camp…Why is the Soviet Union losing its leading position in space research? A common answer to this question answer is as follows: the USA have developed a very wide front of research in space; they allocate enormous funds for space research. In the past 5 years they spent more than 20 billion dollars, and in 1965 alone 7 billion dollars. This answer is basically correct. It is well known that the USA spend on space exploration much more than does the USSR.

The letter covers other issues, including battles between the various organizations involved in space affairs as well as a stated preference by some for robotic flights rather than manned-flights.

It is an interesting reminder that the same issues constantly crop up to potentially cripple space initiatives, and today’s leader in space can quickly fall behind.