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Meet Earth’s newly-discovered companion, a mini-moon named 2020 CD3

Earth rise from the Moon during Apollo 11 mission, 1969. | Credit: NASA

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Earth has a new companion: a mini-moon called 2020 CD3. On Feb. 15, scientists discovered a small rocky chunk that was captured by our planet’s gravity. But don’t get too excited, because it’s likely only a temporary fixture.

Our planet has only one natural satellite, our moon, but for the last couple of years, there’s been another lurking out in space. Astronomers spotted what is likely a carbonaceous asteroid with the help of the Catalina Sky Survey. The mini-moon is between 6.2 and 11.5-feet (1.9 to 3.5-m) in diameter, and roughly the size of a car.

Typically, temporarily captured objects, like 2020 CD3, only hang around for a brief time (from a few months to a year or two) before they are flung back out into space, or in some cases, burn up in our planet’s atmosphere as they’re pulled in by Earth’s gravitational tug.  But according to astronomer’s, it’s been orbiting the Earth for up to three years now.

https://twitter.com/WierzchosKacper/status/1232460436634656769

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The celestial real estate encircling the Earth is pretty crowded, which is probably why we’ve just now noticed it. Asteroids which are piles of planetary rubble, remnants left over from the birth of the solar system are usually very small and dark, making them difficult to spot.

So, discovering 2020 CD3 is kind of a big deal. To date, there have been only a handful of proposed potential mini-moons with only one confirmed — an asteroid named 2006 RH120. The three-foot-wide space rock orbited the Earth for just over a year, from 2006-2007. 

“Out of 1 million known asteroids, this is just the second asteroid known to orbit Earth,” Kacper Wierzchos, the astronomer who detected the object, said on Twitter.

The existence of 2020 CD3 is an exciting discovery for a number of reasons, including providing the chance to study asteroids up close. Most asteroids orbit between Mars and Jupiter, in the main asteroid belt and it takes sending a spacecraft out into the solar system to study one of these celestial objects in detail.

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Mini-moon 2020 CD3 was detected by the Catalina Sky Survey and imaged by the Gemini Observatory. Credit: Gemini Observatory

2020 CD3 could provide astronomers with the chance to study asteroids in detail and better understand how they’re captured by planets. Unfortunately,  computer simulations indicate that the mini-moon could be back on a journey around the sun as early as April. That’s because it’s caught in a game of tug-of-war between the Earth and the moon.

Analysis of 2020 CD3’s orbital motion indicates it’s heavy for its size, which leads astronomers to believe it is in fact, an asteroid. But scientists will use the next few weeks to continue studying the enigmatic object in order to definitively determine whether it is indeed an asteroid or perhaps a rogue piece of space junk.

There’s no time to plan a mission to 2020 CD3, as the object is already growing fainter and fainter in images, but astronomers say it will likely be back in a few decades. With more advanced telescopes coming online in the near future, these types of sightings could become more and more common.

I write about space, science, and future tech.

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Tesla Model Y wins 2026 Drive Car of the Year award in Australia

The Model Y is already Australia’s best-selling EV in 2025 and the tenth best-selling vehicle overall.

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Credit: Tesla

The Tesla Model Y has been named 2026 Drive Car of the Year overall winner, taking the top honor after being judged as the vehicle that “moves the game forward the most for Australian new car buyers.” 

The Model Y is already Australia’s best-selling EV in 2025 and the tenth best-selling vehicle overall, but the vehicle’s Juniper update strengthened its case with new ownership benefits and expanded software capability.

Drive’s overall award compares category winners and looks at which model most significantly advances the local new car market. In 2026, judges pointed to the Model Y’s five-year warranty and the availability of Full Self-Driving (Supervised) as a monthly subscription as key differentiators.

Priced from AU$58,900 before on-road costs, the all-electric crossover SUV offers a lot of value compared to similarly sized petrol and hybrid rivals. The ability to access Tesla’s Supercharger network across Australia also reduces friction for buyers moving to EV ownership.

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Owners can add FSD (Supervised) for AU$149 per month. While it still requires driver oversight, the system expands the vehicle’s advanced driver-assistance capabilities and reflects Tesla’s software-first approach.

“The default choice for a reason. The Tesla Model Y makes the transition to electric both effortless and rewarding,” Drive wrote.

The 2025 Model Y facelift also sharpened the vehicle’s exterior, highlighted by a distinctive rear light bar that gives the crossover SUV a more modern road presence.

Drive described the Model Y as a benchmark for combining practicality, efficiency and technology at an accessible price point. With eligibility for federal Fringe Benefit Tax exemptions through novated leasing, its value proposition has improved for numerous buyers.

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For 2026, the Model Y’s combination of range efficiency, charging access and software capability proved decisive. Ultimately, the award all but cements the Model Y’s position as one of the most influential vehicles in Australia’s evolving new-car market today.

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Elon Musk reiterates rapid Starship V3 timeline with next launch in sight

Musk shared the update in a brief post on X, writing, “Starship flies again next month.”

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Credit: SpaceX/X

Elon Musk has confirmed that Starship will fly again next month, reiterating SpaceX’s aggressive timeline for the first launch of its Starship V3 rocket.

Musk shared the update in a brief post on X, writing, “Starship flies again next month.” The CEO’s post was accompanied by a video of Starship’s Super Heavy booster being successfully caught by a launch tower in Starbase, Texas. 

The timeline is notable. In late January, Musk stated that Starship’s next flight, Flight 12, was expected in about six weeks. This placed the expected mission date sometime in March. That estimate aligned with SpaceX’s earlier statement that Starship’s 12th flight test “remains targeted for the first quarter of 2026.”

If the vehicle does indeed fly next month, it would mark the debut of Starship V3, the upgraded platform expected to feature the rocket’s new Raptor V3 engines.

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Raptor V3 is designed to deliver significantly higher thrust than earlier versions while reducing cost and weight. Starship V3 itself is expected to be optimized for manufacturability, a critical step if SpaceX intends to scale production toward frequent launches for Starlink, lunar missions, and eventually Mars.

Starship V3 is widely viewed as the version that transitions the program from experimental testing to true operational scaling. Previous iterations have completed multiple integrated flight tests, with mixed outcomes but steady progress. Expectations are high that SpaceX is now working on Starship’s refinement.

An aggressive launch schedule supports several priorities at once. It advances Starlink’s next-generation satellite deployment, supports NASA’s lunar ambitions under Artemis, and keeps SpaceX on track for its longer-term Moon and Mars objectives.

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Tesla Model Y L six-seater approved for Australia ahead of launch

The variant was listed as YL5NDB on the Australian government’s ROVER approval website.

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Credit: Tesla Asia/X

Tesla’s six-seat, extended-wheelbase Model Y L has been approved for sale in Australia, as per newly published government documents.

The variant, listed as YL5NDB on the Australian government’s ROVER approval website, has confirmed that Tesla has received regulatory clearance to offer the extended Model Y to domestic customers.

Documents seen by Drive show that the Model Y L has been approved in Australia in a single dual-motor, all-wheel-drive configuration. While Tesla has not formally announced a launch date, vehicles are typically approved for Australian sale several months before arriving in showrooms.

The Model Y L is a longer version of the regular Model Y, designed to accommodate a six-seat layout with two seats in each row. It measures 177mm longer overall than the regular Model Y, at 4969mm, and features a 150mm longer wheelbase at 3040mm.

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Australian approval documents list the Model Y L with the same nickel-manganese-cobalt battery pack used in the regular Model Y Long Range, which is expected to have a gross capacity of about 84kWh and a usable capacity of about 82kWh. Output is officially listed at 378kW in government filings, though real-world peak output may differ.

The Model Y L replaces the regular Model Y’s second-row bench with two captain’s chairs featuring heating, ventilation, and power adjustment. Heated third-row seats are also included.

Additional upgrades reported by Drive include an 18-speaker sound system, new front seats with single-piece backrests, and continuously variable shock absorbers. The only wheel option listed for the Australian model is 19-inch wheels.

In Europe, where the Model Y L has also received approval but has not yet launched, the variant is expected to claim up to 681km of WLTP range.

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