1 . In looking through your social media, there’s a good chance you’ve noticed pictures accompanied by texts. The pictures are likely made possible by a text-to-image program called DALL-E. For example, Twitter user posted a tweet with the text, “To be or not to be, rabbi holding avocado, marble sculpture.” Then a matching picture appears below.

The AI models come from Google’s Imagen software as well as OpenAI. a start-up backed by Microsoft. On its website, OpenAI calls DALL-E “a new Al system that can create realistic images and art from a description in natural language.” But most of what’s happening in this area is coming from a relatively small group of people sharing their pictures. That’s because Google and OpenAI have not made the technology broadly available to the public.

The text-to-picture services identify the most important parts of a user’s text and then guess the best way to picture those terms. There’s generally a text box, a button to start the generation process and an area below to display images. To indicate the source. Google and OpenAI add watermarks in the bottom right comer of images from DALL-E and Imagen.

Engineers trained the models on various collections of words and pictures from the web. OpenAI recognizes the potential for harm that could come from a model. To avoid the risk, employees removed violent content from training data, and there are filters（筛选）stopping DALL-E from producing images if users submit（提交）violent or illegal content.

Boris Dayma, a developer from Texas spelled out the problems in an explanation of their software. Despite the risks, Dhariwal, a research scientist at OpenAI, said it could open up creative opportunities for individuals and could help with commercial applications for dressing up websites. Results should continue to improve over time.

2 . Humans have been living and working on the space station for 20 years. Their meals are packaged, though sometimes astronauts receive fresh treats from resupply missions. The longer that packaged food is stored, the more it loses nutrients like vitamin C and vitamin K.

Astronauts have successfully grown 10 different crops on the space station since 2015 and had the chance to sample each one. The International Space Station hosted a party for astronauts on Friday as they celebrated the harvest of the first Chili (辣椒) grown in space. The crew finally had a chance to taste the peppers after initially kicking off the plant experiment on the space station in July.

Plant Habitat-04 is one of the most complex plant experiments on the orbiting laboratory to date because peppers take much longer to grow than the previous experiment plants. After growing for four months, the peppers were harvested on Friday.

Peppers provide a great source of vitamin C, as well as other key nutrients. Pepper plants self-pollinate, so they are easy to grow, and they are a pick-and-eat crop that doesn’t have to be cooked. They are also safe to eat raw.

A side effect of life in zero gravity is that astronauts often lose some of their taste and smell, so spicy or well-seasoned foods are a favorite. Adding fresh greens or peppers to the menu allows astronauts to liven up their regular meals. But growing and tending to the plants can also produce other benefits.

Astronauts have described the joy from seeing—as well as smelling and caring for—leafy green plants on the space station that remind them of Earth.

“Growing colorful vegetables in space can have long-term benefits for physical and psychological health,” said Matt Romeyn, principal investigator for the experiment.” We are discovering that growing plants and vegetables with colors and smells helps to improve astronauts’ well-being.”

Mahru-Z, a robot developed by the Korea Institute of Science and Technology (韩国科学技术研究所) can clean a home, put clothes in a washing machine and even heat food in a microwave. It     1     (take) the institute two years to develop Mahru-Z,     2     is 4.3 feet tall and 121 pounds in weight. The new robot has a human-like body including rotating (旋转的) head, arms, legs     3     six fingers. The most special feature of Mahru-Z is     4     (it) ability to observe objects (物体), recognize tasks, and complete them.

Mahru-Z can also work with an earlier robot     5     (call) Mahru-M. Mahru-M can move on wheels (轮子). Both Mahru-M and Mahru-Z can be     6     (remote) controlled by a computer.

A scientist of the institute regarded Mahru-Z as     7     most advanced robot in terms of     8     (copy) human movements. Apart from doing the housework, it can also be used in conditions too difficult or     9     (danger) for humans. But production for commercial use is some way away.

The science institute spends about 3.5 million dollars     10     robot research every year. It began receiving state funds for the project in 2006.