The Walt Disney Company wasn't about to let COVID-19 stop the company from developing. In the past year, some Disney theme park innovations（革新） have been designed.

For example, Disney had always encouraged face-to-face interactions（互动） between cast members（演职人员） and customers. It made perfect sense since Disney spends so much time training its workers in providing good customer service. In fact, Disney is known for pleasing its guests, which explains why it scores so high in customer satisfaction surveys. Well, COVID-19 turned personal interactions into problematic exchanges, as they increased the risk of spreading COVID-19. So, quickly, Disney added cast member virtual（虚拟的） chat to its app My Disney Experience. Now, you can rely on a cast member's knowledge whenever you have a question about Disney visit. It's like having a tour guide on your phone!       

There is also the Walk-Up Waitlist. Before 2020，Disney had made strict rules for its Table Service restaurants. Once something sold out, would-be diners had no means of booking a table. COVID-19 has affected park guests, though. Some of them booked tables but then decided not to eat there. This cost Disney money, and it prevented you from dining at your favorite places. So, restaurant managers felt unhappy about the poor business practice, and Disney's IT department reached a solution. The Walk-Up Waitlist in My Disney Experience allows you to add your name at a restaurant. A previously booked restaurant will find a table for you to dine there. My Disney Experience shows the waiting time. You'll know whether the wait will fit with your tour. For Disney, the Walk-Up Waitlist improves services and can make it earn more money while increasing customer satisfaction.

In the face of COVID-19，Disney somehow made its parks better and more modern. The company is really worth praising for such great innovations.

At the time of writing this, more than 600 people have gone to space. The first person to do it was the Soviet astronaut Yuri Gagarin, in 1961. Most of the people that have achieved the dream of flying to outer space have been astronauts that form part of space agencies such as NASA although a few have gone as part of space tourism trips.

But space exploration can be a risky profession. We have all heard about unfortunate accidents like that of the Apollo 1 training crew or the Space Shuttle Challenger. To date, there have been 188 accidents related to space flights. Fortunately, the number of accidents has greatly been reduced since the 1980s as space agencies have gotten better at conducting safety protocols (协议).

With all those incidents, it is natural to wonder if at some point any astronauts have been lost in space. Are there any dead bodies in space? The short answer is no. There are no dead bodies in space. Most of the spaceflight-related accidents have happened on land or before reaching the line that we consider space. This limit is called the Kármán line and is 100 kilometres (62 miles) above sea level.

There have been a few cases of spacecraft that have been “lost in space”. For example, the Apollo 10 released the descent (下降) module while they were orbiting the Moon. The module did not have any astronauts inside and was “lost” although it was released in such a way that it would go into orbit around the Sun. The module was located in 2019 using a telescope. As for other types of accidents, there have been, cases of satellites that have collided (碰撞) or been hit by something. But those are unmanned and they usually fall into Earth and are disintegrated from the heat as they enter the atmosphere.

In short, there are no human bodies lost in space. Most spaceflight-related accidents that involved people have happened while still on Earth.