В NASA показали фото елки- рассеянное звёздное скопление Снежинки или NGC 2264, расположенное в созвездии Единорога. Изображение сделано на основе снимков телескопа «Chandra» и астрофотографа из Аризоны.
Своё название скопление получило за внешний вид: облака конической формы похожи на ветки вечнозелёного дерева, а звёзды — на ёлочные украшения.
В NASA показали фото елки- рассеянное звёздное скопление Снежинки или NGC 2264, расположенное в созвездии Единорога. Изображение сделано на основе снимков телескопа «Chandra» и астрофотографа из Аризоны.
Своё название скопление получило за внешний вид: облака конической формы похожи на ветки вечнозелёного дерева, а звёзды — на ёлочные украшения.
At its heart, Telegram is little more than a messaging app like WhatsApp or Signal. But it also offers open channels that enable a single user, or a group of users, to communicate with large numbers in a method similar to a Twitter account. This has proven to be both a blessing and a curse for Telegram and its users, since these channels can be used for both good and ill. Right now, as Wired reports, the app is a key way for Ukrainians to receive updates from the government during the invasion. If you initiate a Secret Chat, however, then these communications are end-to-end encrypted and are tied to the device you are using. That means it’s less convenient to access them across multiple platforms, but you are at far less risk of snooping. Back in the day, Secret Chats received some praise from the EFF, but the fact that its standard system isn’t as secure earned it some criticism. If you’re looking for something that is considered more reliable by privacy advocates, then Signal is the EFF’s preferred platform, although that too is not without some caveats. Some privacy experts say Telegram is not secure enough Telegram does offer end-to-end encrypted communications through Secret Chats, but this is not the default setting. Standard conversations use the MTProto method, enabling server-client encryption but with them stored on the server for ease-of-access. This makes using Telegram across multiple devices simple, but also means that the regular Telegram chats you’re having with folks are not as secure as you may believe.
from hk
