Astronomers discover the largest comet from the outskirts of the solar system is exploding with jets of gas
Solar System

Astronomers discover the largest comet from the outskirts of the solar system is exploding with jets of gas

The massive 85-mile-wide comet C/2014 UN271, the largest icy body in the Oort Cloud, is also noted as the second most distant chemically active comet. This discovery highlights the intriguing dynamics of our solar system's outer reaches.


What is the size of the comet C/2014 UN271, and how does it compare to other comets?
Comet C/2014 UN271 has a nucleus diameter estimated to be between 119 km and 137 km, making it significantly larger than most comets, including Hale-Bopp, which has a diameter of about 74 km. It is the largest known Oort Cloud comet and is more than 50 times larger than a typical comet[1][2].
Sources: [1], [2]
What is the significance of detecting molecular activity in C/2014 UN271, and how does its distance affect its behavior?
Detecting molecular activity in C/2014 UN271 is significant because it shows that even at great distances from the Sun, comets can exhibit chemical activity. This comet is the second most distant chemically active comet known, and its activity at 16.6 AU from the Sun provides insights into the dynamics of distant icy bodies in the solar system[4][5].
Sources: [1], [2]

19 June 2025

Space.com
Proton VPN: The first 5 settings you need to change
VPN

Proton VPN: The first 5 settings you need to change

Proton VPN stands out for its robust privacy features and speed. Key settings to enhance user experience include activating the kill switch, enabling NetShield, setting WireGuard as the default protocol, configuring split tunneling, and using the VPN Accelerator for improved speeds.


What is NetShield in Proton VPN and how does it enhance privacy and browsing speed?
NetShield is Proton VPN's built-in ad-blocker and DNS filtering feature that blocks privacy-invading ads, trackers, and malware domains. By preventing your device from loading unnecessary content such as ads and trackers, it not only protects your privacy but also speeds up your browsing experience. Users can customize NetShield to block only malware, or also ads and trackers, and monitor what is blocked via the NetShield Privacy Panel.
Sources: [1], [2], [3]
What is the VPN Accelerator in Proton VPN and how does it improve connection speeds?
The VPN Accelerator is a Proton VPN feature designed to enhance connection speeds by optimizing network performance. It works by improving the efficiency of data transmission over the VPN, reducing latency and increasing throughput, which results in faster and more stable VPN connections. This setting is recommended to be enabled to get the best speed performance from Proton VPN.

19 June 2025

PCWorld
Apple Trade-In

Apple Lowers iPhone Trade-In Values as Limited-Time Promotion Ends

Apple has reduced iPhone trade-in values in the U.S. and select countries, following the conclusion of a promotion. Values for various models decreased by $5 to $30, impacting trade-in options available on Apple's website and in stores.


Why did Apple lower the iPhone trade-in values recently?
Apple reduced the trade-in values for various iPhone models by $5 to $30 after the conclusion of a limited-time promotion that temporarily increased trade-in credits. This adjustment reflects the end of the promotional period that offered enhanced trade-in values to encourage upgrades before the launch of new iPhone models.
Sources: [1], [2]
How does Apple's trade-in program determine the value of an iPhone?
Apple's trade-in values are influenced primarily by the device's condition, model age, and current market demand. Newer models and devices in excellent condition receive higher trade-in credits. Market demand also affects values, with older models sometimes increasing in value following the release of new iPhones. The trade-in process involves an initial online estimate based on device condition, followed by a final valuation after Apple inspects the returned device.
Sources: [1], [2]

19 June 2025

MacRumors
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