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On August 15, 2024, NASA’s Backyard Worlds: Planet 9 project, driven by citizen scientists, uncovered an astonishing discovery: an object travelling at a staggering speed of 1 million miles per hour, enough to escape the Milky Way’s gravitational grasp. This hypervelocity object, known as CWISE J124909.08+362116.0, marks the first of its kind identified with the mass of a small star. Its extraordinary speed and low mass make it a unique subject of study.

What Is CWISE J1249?

CWISE J1249 was detected using data from NASA’s Wide Field Infrared Survey Explorer (WISE), which later became the NEOWISE mission. Citizen scientists Martin Kabatnik, Thomas P. Bickle, and Dan Caselden were pivotal in spotting this fast-moving object in the WISE images. Subsequent observations confirmed its rapid motion and low mass, placing it in a category between a brown dwarf and a low-mass star, depending on its core’s hydrogen fusion activity.

Why Is It Moving So Fast?

The reasons behind CWISE J1249’s incredible speed are still under investigation. One hypothesis is that it originated from a binary star system where a supernova explosion of a white dwarf propelled it outward. Another possibility is that it was ejected from a globular cluster due to an encounter with a pair of black holes. This ejection would explain its high velocity and low metallic content, suggesting it could be from an early generation of stars.

Collaborative Effort

This discovery highlights the significant role of citizen scientists in astronomical research. Kabatnik and his team, including Melina Thévenot and software developer Frank Kiwy, played crucial roles in identifying and analyzing the object. The study, led by Adam Burgasser from UC San Diego, involves a collaborative effort from professionals and amateur astronomers alike. This finding showcases the power of collective scientific inquiry and the potential of citizen science in unravelling cosmic mysteries.

CWISE J1249’s discovery not only expands our understanding of high-speed celestial objects but also underscores the invaluable contributions of citizen scientists to space exploration and research.

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China Launches PRSS-01 to Elevate Pakistan’s Space and Disaster Response

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China Launches PRSS-01 to Elevate Pakistan’s Space and Disaster Response

In a major fillip to Pakistan’s space and disaster management applications, China Thursday launched the first ever Remote Sensing Satellite-1 (PRSS-01) exclusively for Pakistan. The satellite was carried into orbit on a Kuaizhou-1A rocket from the Xichang Satellite Launch Centre in Sichuan province. PRSS-01 was injected into the intended orbit after liftoff, and all systems were declared functioning properly. The satellite will be used to support agriculture and land surveys, urban planning, emergency disaster response, as well as environmental monitoring scans for the country, and marks a new beginning in Pakistan’s ambitions of a space program. It also highlights persistent cooperation between China and Pakistan in technology associated with space science, as well as earth observation.

Earth Observation and Disaster Management

According to the official website, PRSS-01 is equipped with high-resolution imaging systems capable of providing detailed data across a wide range of civilian and governmental uses. Its uses consist of national land survey, urban planning, and real-time environmental monitoring. Crucially, it increases Pakistan’s ability to respond rapidly and efficiently when natural disasters such as floods or earthquakes occur. It is anticipated that the technology will be valuable in long-term infrastructure planning and will promote smarter, sustainable development across the country.

Strengthening Bilateral Space Cooperation

The PRSS-01 launch indicates that the strategic cooperation between China and Pakistan is deepening, in aerospace technology as well. Engineers from the two countries worked closely together throughout the development and launch processes, including substantial technological support from China. The mission will continue the spirit of collaboration evident in satellite communications and scientific payloads between China, Pakistan, and Algeria, strengthening confidence among partners.

The successful launch of PRSS-01 is not only a great leap for Pakistan in promoting national development, but also an important step towards China’s deepening cooperation with countries along the Belt & Road Initiative (BRI) and its aerospace industry transforming from being big to strong. With the launch of PRSS-01, industry expects a new era in improved satellite services for Pakistan.

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Mysterious Planet Nine May Still Lurk in the Outer Solar System



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Mysterious Planet Nine May Still Lurk in the Outer Solar System

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Mysterious Planet Nine May Still Lurk in the Outer Solar System

The concept of a large, hidden planet or planets lurking in the most distant regions of our solar system has been known since before Pluto’s discovery on 1930s. Originally named “Planet X,” it had been proposed to account for irregularities in Uranus’s orbit. That mystery was eventually resolved by recalculating Neptune’s mass. But in 2016, Caltech astronomers Konstantin Batygin and Mike Brown resurrected the puzzle with a new idea — Planet Nine — which was based on the bizarre orbits of distant Kuiper Belt objects. The explanation is that a huge planet far away is gravitationally pulling on these objects.

The Case for Planet Nine

According to Batygin and Brown’s observation, many of the Kuiper Belt objects don’t travel on orbits as expected. This suggests that, like the Moon (whose outward spiral from Earth is due to earth’s gravity), these distant objects are somehow being perturbed by something other than our Sun. The hypothesised Planet Nine is believed to be several times the size of Earth and orbiting out beyond Neptune. Supporting evidence are the discovery of recently detected trans-Neptunian-object with elliptical-orbits (such as 2017 OF201 ) which could have been sculpted by a massive planet.
In 2024, Brown reaffirmed confidence in the theory, stating, “There are currently no other explanations for the effects that we see.” More trans-Neptunian discoveries keep pointing toward an unknown gravitational force.

Challenges and New Clues

However, the theory faces hurdles. Other astronomers contend that there is not enough data on the Kuiper Belt to warrant a Planet Nine. Others suggest alternative explanations, such as a debris ring or even something more exotic like a small black hole. One is reduced observing time; tens of thousands of years are required for these objects so far from our planet to orbit.

Recent finds, such as the sednoid 2023 KQ14 — so elongated that it looks stable in an empty solar system — complicate the scenario even more. If Planet Nine is out there, it could be at least 500 AU away from the Sun. In the meantime, astronomers are continuing to search those huge, remote edges of our solar system using ground- and space-based telescopes.

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SpaceX, NASA Delay Crew-11 Launch Due to Thick Clouds over Kennedy Space Center



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SpaceX, NASA Delay Crew-11 Launch Due to Thick Clouds over Kennedy Space Center

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SpaceX, NASA Delay Crew-11 Launch Due to Thick Clouds over Kennedy Space Center

Just over a minute before liftoff on July 31, SpaceX called off the launch of NASA’s Crew-11 mission due to unsafe weather at Kennedy Space Center in Florida. The scrub came after a dense bank of cumulus clouds drifted within a 10-mile radius of the launch pad, violating flight safety criteria. The Crew-11 mission is set to carry four astronauts to the International Space Station (ISS) aboard the Crew Dragon Endeavour capsule, marking the spacecraft’s sixth flight — a reuse record under NASA’s Commercial Crew Program.

Weather Forces Delay, But Crew-11 Eyes August 1 Launch Amid Cautious Optimism from NASA

According to NASA’s live broadcast, launch commentator Derrol Nail stated the dark cumulus clouds posed a potential hazard, as rockets should not pass through tall cloud formations. “That could generate some energy from the rocket passing through it,” Nail noted. The area around Launch Complex 39A was still being “watched” for cloud development, with live views showing clouds creeping ever closer.

The next available opportunity to launch is Friday, August 1, at 11:43 a.m. EDT (1543 GMT), with a backup time of Saturday, August 2, at 11:21 a.m. EDT (1521 GMT). NASA astronauts Zena Cardman and Mike Fincke, Japan’s JAXA astronaut Kimiya Yui, and Russia’s Oleg Platonov make up Crew-11.

Once launched, it will take the mission roughly 40 hours to reach the ISS and begin orbiting Earth’s atmosphere at about 248 miles above its surface while going over 17,500 mph. The Endeavour capsule’s sixth flight is another step in NASA and SpaceX’s collaboration to transport astronauts on privately owned spacecraft.

Crew-11 will be the 11th mission of NASA’s Commercial Crew Program. It’s late, officials have mentioned, but safety is still the top thing. Disappointing though that may be, it’s a way to help ensure the crew and spacecraft will make it there in one piece, at precisely the right moment.

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