China's Shenzhou-21 astronauts have steadily carried out a series of tasks aboard the Tiangong space station over the past week, including in-orbit experiments, equipment maintenance and health monitoring, the China Manned Space Agency (CMSA) said on Sunday.
The crew, comprised of mission commander Zhang Lu and astronauts Wu Fei and Zhang Hongzhang, have spent more than four months in orbit and remain in good health, according to the CMSA.
Inside the station's core module, cherry tomatoes cultivated using a water aeroponic device are thriving. The astronauts documented the plants with photos, harvested ripe fruit and sealed both plants and produce separately for preservation.
Building on the success of the cherry tomato cultivation, the team will conduct aeroponic experiments with wheat, carrots, and both medicinal and edible plants as planned. These trials aim to validate key technologies and expand the range of crops and technical capabilities for space cultivation.
In the field of space materials science, the crew completed several tasks, including cleaning the experimental chamber in the unpressurized compartment, replacing experimental samples, maintaining the electrodes of the central mechanism, and cleaning the window cover of the central mechanism.
They also completed related microgravity combustion science experiments, which included replacing the burner and sampling cover inside the experiment cabinet, as well as vacuumization and exhaust gas discharge.
Additional work included maintenance of the regenerative life support system equipment, microorganism monitoring and assessment and medical training, which helps familiarize the astronauts with the rescue operation methods and force application characteristics in a microgravity environment.
The Shenzhou-21 crewed spacecraft blasted off from the Jiuquan Satellite Launch Center in northwest China on Oct 31, 2025, sending the three astronauts to the orbiting space station on a six-month mission.
Shenzhou-21 crew advances space experiments, equipment maintenance on Tiangong
Shenzhou-21 crew advances space experiments, equipment maintenance on Tiangong
Shenzhou-21 crew advances space experiments, equipment maintenance on Tiangong
Iran has received U.S. feedback on its latest peace proposal through Pakistani mediators, and talks between the two sides are still underway, Iranian Foreign Ministry spokesman Esmaeil Baghaei said Monday.
Speaking at a press conference in Tehran, Baghaei said that although the United States had publicly rejected Iran's 14-point peace proposal aimed at ending the conflict, Tehran had still received revisions and concerns through mediator Pakistan.
Such dialogue is continuing through the mediator, he said, stressing that although Iran does not trust the United States, it is still participating in the negotiations based on national interests.
Baghaei said that Iran has submitted its response to U.S. revisions to the conflict resolution plan.
"We approach every diplomatic process with deep distrust and serious skepticism in order to safeguard the national interests of Iran. Iran is aware that, given the United States' track record of undermining negotiations, it may repeat the same actions at any moment," Baghaei said.
Baghaei also said the current situation in the Strait of Hormuz stems from military actions launched by the United States and Israel against Iran, as well as what he described as violations of international law by the two countries.
Iran has taken relevant measures to ensure safety of navigation in the region, he said, adding that communication between Iran and Oman over issues related to the Strait of Hormuz is ongoing.
Baghaei said Iran harbors no hostility toward any country in the Middle East and called on all parties to remain vigilant against attempts by external forces to create division in the region.
Responding to repeated U.S. threats that military action against Iran could resume if no agreement is reached, Baghaei said threats and pressure have long been Washington's standard approach, but such tactics would not work on Iran.
He said Iran would continue advancing negotiations while closely monitoring developments and preparing for all possible scenarios.
Baghaei stressed that Iran would not abandon the rights granted to it under the Treaty on the Non-Proliferation of Nuclear Weapons (NPT) and that the country is currently focused on efforts to end the conflict.
Also on Monday, Iran's semi-official Tasnim news agency, citing sources close to the Iranian negotiating team, said that Tehran had handed over its newest 14-point proposed plan for ending the war with the United States to Pakistan.
Pakistan will convey the plan to the United States, the report said.
The new proposal was submitted after Tehran revised its earlier 14-point draft in response to a recent U.S. proposal, the sources added.
According to the sources, Iran's new draft focuses on negotiations to end the war, as well as on "trust-building" measures.
In a separate report on Monday, Tasnim quoted another source close to the Iranian negotiating team as saying that, unlike previous U.S. drafts, Washington had agreed in its latest proposal to waive sanctions on Iranian oil during the negotiation period.
On the same day, however, a U.S. official said claims by the Iranian side that the U.S. had agreed to lift sanctions during the negotiations were false.
Iran, the United States and Israel reached a ceasefire on April 8 after 40 days of fighting that started with U.S. and Israeli attacks on Tehran and other Iranian cities on Feb 28.
Following the truce, Iranian and U.S. delegations held one round of peace talks in Pakistan's capital Islamabad on April 11 and 12, which failed to yield an agreement.
Over the past weeks, the two sides have reportedly exchanged several proposed plans outlining conditions for ending the conflict through Pakistan.
Iran's foreign ministry says talks with US still underway
