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An asteroid, about the size of a city bus, will soon become a “mini-moon” as it will get caught in Earth’s gravitational pull. Named 2024 PT5, this asteroid is expected to enter Earth’s orbit on September 29, 2024, and will stay until November 25. While the term “mini-moon” may sound peculiar, it is used by scientists to describe any small celestial body temporarily captured by Earth’s gravity. The asteroid was discovered by the ATLAS (Asteroid Terrestrial-impact Last Alert System) project back in August.

Not a Rare Occurrence

Mini-moons are not as rare as one might think. These space objects are typically small asteroids that pass close enough to Earth to be captured by its gravity, often for brief periods. 2024 PT5 is expected to stay within Earth’s orbit for just under two months before continuing its journey through space. Similar mini-moons have been recorded in recent years. For instance, in 2020, an object thought to be a mini-moon was later identified as space debris from a 1960s rocket launch. However, 2024 PT5 is believed to be a genuine asteroid, according to scientists at ATLAS.

A Temporary Flyby

Though referred to as a mini-moon, 2024 PT5 won’t complete a full orbit around Earth. Instead, it will be a “temporarily captured flyby,” circling around 25 percent of the planet’s surface before heading off again into the solar system. These brief encounters are common, and many mini-moons don’t stick around long enough to form a stable orbit.

Can You See It?

Unfortunately, spotting this mini-moon with the naked eye or even with most telescopes will be nearly impossible. The asteroid’s magnitude, or brightness, is far too dim to be detected by standard amateur astronomy equipment. Its absolute magnitude is reported to be 27.593, much fainter than what can be observed with even a 12-inch telescope. Only the most advanced observatories will be able to track this mini-moon’s brief appearance.

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China Uses Gravitational Slingshots to Rescue Two Satellites Stuck in Orbit for 123 Days

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China Uses Gravitational Slingshots to Rescue Two Satellites Stuck in Orbit for 123 Days

In a major display of technical ingenuity, China has successfully rescued two satellites—DRO-A and DRO-B—that were stuck in the wrong orbit for 123 days following a launch failure. The satellites, part of China’s distant retrograde orbit (DRO) constellation, were saved using a series of complex gravitational slingshot manoeuvres that turned a near-disaster into a milestone in space navigation. This recovery mission not only preserved critical hardware but also highlighted China’s growing expertise in orbital mechanics, space rescue operations, and deep-space navigation technologies.

Innovative Thinking in critical condition

According to a recent story by CGTN, on March 15, 2024, China launched two satellites that were mounted on a Long March-2C rocket with a Yuanzheng-1S upper stage. While the launch initially appeared to be successful, a malfunction in the upper stage made the satellites tumble and head towards Earth much closer than planned. With limited power and damaged systems, conventional recovery was impossible.

Zhang Hao, a researcher at the Technology and Engineering Center for Space Utilisation (CSU), described the moment the team learned of the issue in an interview with CGTN Digital: “If the satellites were destroyed, that would have been a waste of the years of effort that we put in and the money invested in the mission. It would also be a mental blow to the team.”

CSU engineers divided into two teams—one worked to stabilise the spinning satellites, while Zhang’s team focused on calculating a new trajectory using gravitational assists. “We calculated the best route to move the satellites back on track,” Zhang explained during the interview.

A Gravity-Assisted Comeback

The mission exploited the gravitational pulls of Earth, the Moon, and even the Sun to carefully nudge the satellites into their target DRO positions. The technique is commonly applied in deep space missions, and it needs a minimal amount of fuel, which makes it a feasible way to bypass the fuel shortage. The most critical manoeuvre lasted just 20 minutes but took weeks of preparation. “I got more and more stressed as the clock ticked,” Zhang admitted. “I just kept staring at the screen until it said ‘normal, ‘” he further added.

Now successfully positioned, DRO-A and DRO-B have joined the earlier DRO-L to form a three-satellite constellation. According to CSU researcher Mao Xinyuan, the network will drastically reduce spacecraft positioning times—from days to just a few hours—and support autonomous navigation between Earth and the Moon.

This mission not only salvaged valuable satellites but also demonstrated China’s growing capability in autonomous spaceflight and long-distance orbital engineering.

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SpaceX Launches 23 Starlink Satellites on Falcon 9 Rocket From Cape Canaveral

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SpaceX Launches 23 Starlink Satellites on Falcon 9 Rocket From Cape Canaveral

SpaceX has successfully sent another batch of Starlink satellites into space on Monday, marking its second launch of the day. At 10:34 p.m. EDT (0234 GMT on April 29), a brand-new Falcon 9 rocket carried 23 Starlink broadband satellites, including 13 equipped with direct-to-cell capability, from NASA’s Kennedy Space Centre in Florida. Earlier today, a separate Falcon 9 launched 27 Starlink satellites from Vandenberg Space Force Base in California. The rapid double mission highlights SpaceX’s pace in expanding its Internet constellation, which already stands as the largest of its kind ever deployed.

According to a Space.com report, this launch was significant as it was the first flight for this specific Falcon 9 rocket’s first stage. SpaceX’s boosters see multiple missions, with one record-setting booster achieving 27 flights to date. Despite being brand new, the first stage of the Falcon 9 made a flawless landing approximately eight minutes after launch, gently landing on the “A Shortfall of Gravitas” droneship stationed in the Atlantic Ocean.

Meanwhile, the rocket’s upper stage continued its journey, carrying the 23 Starlink satellites toward low Earth orbit (LEO). The satellites were released about 65 minutes after liftoff, joining — or more aptly, surrounding — the ever-growing constellation of Starlink spacecraft. With tonight’s successful deployment, SpaceX is one step closer to achieving its mission of offering global broadband coverage using thousands of satellites working together.

SpaceX’s 50th Falcon 9 mission of 2025, devoted to growing the Starlink network, is a highlight of the company’s relentless launch cadence, with 33 missions dedicated to the project, which now counts more than 7,200 operating satellites.

SpaceX is still growing out its satellite constellation and refining its launch-and-recovery technology. The fact that the company was able to pull off two successful Starlink missions in a single day demonstrates just how well SpaceX has been able to finesse the balance between reusability with new hardware.

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Amazon Launches 27 Satellites to Start Building Project Kuiper Internet Constellation

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Amazon Launches 27 Satellites to Start Building Project Kuiper Internet Constellation

A United Launch Alliance (ULA) Atlas V rocket has been launched carrying 27 of Amazon’s Project Kuiper broadband spacecraft. The launch took place from Florida’s Cape Canaveral Space Force Station on April 28, 2025, at 7:01 PM EDT (4:31 AM IST). It is reported to be the first of more than 80 launches, which are planned to deploy a megaconstellation for Project Kuiper. The ultimate end goal for Amazon is to provide end-to-end network service, which means routing data both to and from the satellites and from the internet to the satellites and from the satellites to a customer’s terminal antenna. The effort is expected to start covering customers later this year. The remaining 80-plus launches will be performed by Atlas V and its successor, ULA’s new Vulcan Centaur rocket.

According to a Space.com report, the 27 satellites will be initially placed at an altitude of 280 miles (450 kilometres) and will later manoeuvre themselves to their operational height of 392 miles (630 kilometres). Interestingly, reports suggest that Amazon will eventually harbour more than 3,200 satellites. In contrast, SpaceX’s Starlink network already has over 7,200 active broadband satellites. The report further claims that the brand is planning to launch 80 more satellites in the next few months.

Today’s launch used an Atlas V rocket, and the Kuiper fleet rollout will see additional launch missions with more Atlas Vs and Vulcan Centaur rockets.

Amazon has also advanced its satellites with innovative technologies, such as phased array antennas, optical inter-satellite links, updatable software, solar arrays, and efficient propulsion, to create a high-performance service architecture, accessible from any point on Earth.

Amazon’s Kuiper launch seems near following satellite deployment and testing, with an approach to compete with the operational architecture of Starlink by establishing a datalink from the internet down to Earth stations.

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